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Urban Traffic Management and Control System,
Aylesbury
Volume 2
Community Infrastructure Funding Bid: Round 2
November 2008
Prepared for Buckinghamshire County Council
Prepared by Jacobs on behalf of Buckinghamshire County Council
Project Director:
Mark Saunders
Authorised by:
Anne James
Service Manager for Strategic Transport Services
On behalf of Buckinghamshire County Council
Contents
VOLUME 1
1 Executive Summary
2 Promoter Information
3 Risks
VOLUME 2
1. Integration
1.1 Integration Worksheet…………………………………………… 1
2. Appraisal Summary Table
2.1 Appraisal Summary Table……………………………………… 3
3. Appraisal Worksheets
3.1 Environmental Objective………………………………………… 5
3.2 Safety Objective…………………………………………………… 22
3.3 Economy Objective……………………………………………… 24
3.4 Accessibility Objective…………………………………………… 29
3.5 Integration Objective……………………………………………… 32
VOLUME 3
Planning for Growth in Aylesbury
The Strategy in Detail
A41 Bicester Road PPTC Scheme Description
The CONTRAM Model
The VISSIM Model and ARCADY Assessments
Economic Assessment
Environmental Overview
Monitoring and Evaluation
1 Integration Worksheet
Additional housing fully
16,800*
dependent on
Full dependency: 4,200 (25%)**
transport scheme
Previously Developed Currently in
Total Derelict Vacant
Land (PDL) Use
Hectares developed 43 6 8 29
Urban New
Non-PDL Total Infill
Extension Settlement
Hectares developed
367 365 2 0
3+
Dwelling Size Total 2 Bedrooms 1 Bedroom
Bedrooms
Number of dwellings 17,900 6,800 8,200 2,900
Number of “affordable”
5,950 Split not yet known
dwellings
2006/8 National Affordable Housing Programme
Value of other subsidies (NAHP) allocated £33M for 871 affordable units.
supporting developments NAHP 2008/11 allocated £17.7M for a further 400
units.
* This figure does not include 1,100 units required to make up for the pre 2006
deficit in commitments that are required to ensure that full LDF allocations are met.
If these units are taken into consideration the number of dwellings rises to 17,900
and the full dependency figure rises to 4,475.
** The UTMC bid scheme underpins the roll out of the entire Aylesbury Transport
Strategy which, in turn, is designed to support a sustainable transport solution to the
transport impacts arising from the entire SE Plan housing and LDF employment
commitments to 2026. The nature of the bid scheme makes it entirely impractical to
sub-divide any particular element of these commitments and to allocate them to the
bid scheme.
It is considered that these major development commitments, the associated
transport strategy and a much more integrated transport system and network cannot
be delivered as presently envisaged without the bid scheme. Consequently, it could
be considered that to some degree all the commitments are dependent upon the bid
scheme. However this would lead to a high degree of double counting of benefits
and so an assumed 25% or 4,200 dwellings have been taken as fully dependent.
Buckinghamshire County Council - -1-
CIF Bids 2008
This particular issue emphasises the difficulty of applying the scheme appraisal
methodology to a single element of a much wider transport strategy designed to
support a town-wide regeneration commitment. The difficulties are further
exacerbated when a project such as UTMC is considered, which has elements
across the town and which is needed to support long term attitudinal change as well
as to provide real user benefits from the early stages. The often used description of
UTMC as the glue which holds everything together is particularly apt in these
circumstances
Buckinghamshire County Council - -2-
CIF Bids 2008
2 Appraisal Summary Table
Buckinghamshire County Council -
-3-
CIF Bids 2008
Aylesbury Urban Traffic Management and Control System Page: 9
APPRAISAL SUMMARY TABLE PAGE
OBJECTIVE Sub-Objective Qualitative Impact Quantitative Measures Assessment
Noise No significant impact. Neutral
Local Air Quality No significant impact. Neutral
Greenhouse Gases No significant impact. Neutral
Landscape No significant impact. Neutral
The overall impact of the scheme is likely to be slight adverse as a result of the increase to signage and traffic control
equipment along primary routes and within or adjacent to historically sensitive sites/areas, with the greatest impact
Townscape caused by the installation of VMS signs (free-text and car park). Some level of improvement in human interaction is likely Slight Adverse
ENVIRONMENT
through the regulation of traffic movements and the likely reduction of congestion, particularly at junctions and along key
routes. The proposals would also serve to improve pedestrian circulation and access towards the town centre.
Heritage and The overall impact of the scheme is likely to have a slight adverse impact based on the possibility that some of the signs
Slight Adverse
Historical Resources may not fit with the form or architectural character of the historic townscape/landscape.
Earth Environment- There is a possibility that there will have been potentially contaminative historic land uses in or
around the site, and elevated levels of potential contaminants may be present in the ground. Ecology- Special character:
none. Options in the Slight Adverse Category imply that were development to proceed adequate mitigation and
Biodiversity Slight Adverse
compensation measures could be implemented to offset potential impacts. The data in these tables is derived from desk
study and walkover surveys. Revision may be required depending on actual development footprints and subsequent
impacts.
Water Environment Proposed installation of traffic control measures are unlikely to significantly affect the water environment. Neutral
Without Scheme over 30 min activity 0;
Physical Fitness No significant impact Neutral
With Scheme over 30 min activity 0
Generally, pedestrians and cyclists will be relatively unaffected by the scheme, however real time information at bus stops
Journey Ambience will reduce frustration and uncertainty for public transport users. VMS will reduce frustration and uncertainty for vehicular Moderate Beneficial
users
SAFETY
Accidents The overall impact of the scheme is not likely to change the number of accidents in Aylesbury Neutral
Security With the implementation of CCTV at junctions and the use of ANPR for traffic monitoring security will be improved. Slight Beneficial
While no formal economic assessment of all the elements of UTMC is possible an assessment of the potential value of The result from the model indicate a
Public Accounts the scheme can be inferred by modelling the co-ordination of traffic signals in Aylesbury town centre. This was carried journey time saving of over 200 hours in £2.88M
out for the AM peak hour using a visual simulation model. the AM peak
Business Users &
providers
ECONOMY
A comparison can be made with the A41 Bicester road economic evaluation using the same traffic forecasts which User Benefits could be of the order of
BCR approx 4 to 5
provided some £16.7M user benefits from an AM peak journey time saving of 155 hours £16M to £20M
Consumer Users
The scheme will enable much better operational management which will make journeys more predictable and reliable by
Reliability Moderate Beneficial
all modes.
Wider Economic The scheme is an integral part of the wider Aylesbury Transport Strategy designed to deliver planned growth of 16,800
Slight Beneficial
Impacts dwellings and 16,800 jobs within the town by 2026.
In line with Webtag unit 3.6.1 and in view of the number of residents impacted then the nature and scope of the benefit is
Option values Moderate Beneficial
ACCESSIBILITY
considered 'moderate' to 'strong' beneficial.
Severance There is no change in severance resulting from the scheme Neutral
By providing positive priority for bus services there is a beneficial impact on the journey reliability. However it is proximity
Access to Transport to services which is the thrust of this particular sub objective and so after consideration of Webtag unit 3.6.3 it has been
Neutral
System decided that the "access to the transport system" sub objective is not relevant to the bid scheme. Consequently the
impact is summarised as Neutral.
The existing population of 70,000 residents is estimated to grow to in excess of 100,000 as a result of commited
Transport
development by 2026. The nature of the scheme itself will not bring bus services closer to residents per se although the Beneficial
Interchange
quality of all services will improve significantly.
INTEGRATION
The bid scheme is an integral part of the much wider Aylesbury Transport Strategy which has been developed in order to
Land Use Policy Beneficial
deliver the land use commitments of the South East Plan.
It is Government Policy to provide travellers with real time information in order that they may make the most appropriate
travel choice for their journey - the scheme provides all the necessary core systems which can readily expand as
Other Government demanded by the developments envisaged for Aylesbury. The bid scheme is an integral part of the much wider
Beneficial
Policies Aylesbury Transport Strategy developed to deliver the underlying sustainable transport agenda to support the growth
commitments in the S E plan. In turn supports all the LTP objectives to support assessibility, social inclusion, safety and
economic prosperity across Aylesbury.
3 Appraisal Worksheets
3.1 Environmental Objective
3.1.1 Environmental: Noise
No significant impact.
The impact has been rated as Neutral.
Buckinghamshire County Council - -5-
CIF Bids 2008
3.1.2 Environmental: Local Air Quality
There is considerable evidence from integrated ITS projects around the
world that a benefit to local air quality is achieved. Levels of reduction of
hydrocarbon, carbon monoxide and nitrous oxides of 3.5% to 5% at peak
periods repeatedly arise as a bi-product of integrated ITS. Examples include:
• ‘ARTIMIS’ project in the metropolitan areas of Northern Kentucky and
Cincinnati, Ohio
• SCOOT project in Toronto, Canada
More significant benefits are achieved when the ITS is targeted at air quality
issues. The ‘QUARTET Plus’ project in Athens achieved a 29% reduction in
Carbon Monoxide levels, and 25% in hydrocarbon levels, through the
targeted use of VMS.
The SCOOT system in course of implementation in Buckinghamshire, and
extended into Aylesbury as part of this CIF project, can be used to optimise
traffic operation on the basis of air quality considerations. Additional focus on
local air quality will result from the relaying of monitoring information into the
common database from the three Air Quality Management Areas, and the
use of this data through the associated strategy manager to target a
reduction of pollutants in these sensitive locations.
The use of Car Park VMS has been found in a number of studies to reduce
the unnecessary circulation of traffic in town/city centres. In Southampton, for
instance, the Parking Guidance system resulted in a 50% reduction in the
average search time for parking spaces. Significant benefits may be
anticipated in Aylesbury, with a resultant improvement in air quality.
For these reasons the net effect of the UTMC system as proposed for
Aylesbury is considered to be Beneficial.
Buckinghamshire County Council - -6-
CIF Bids 2008
3.1.3 Environmental: Greenhouse Gases
No significant impact.
The impact has been summarised as Neutral.
Buckinghamshire County Council - -7-
CIF Bids 2008
3.1.4 Environmental: Landscape
No significant impact.
The impact has been summarised as Neutral.
Buckinghamshire County Council - -8-
CIF Bids 2008
3.1.5 Environmental: Townscape
The overall impact of the scheme is likely to be slight adverse as a result of
the increase to signage and traffic control equipment along primary routes
and within or adjacent to historically sensitive sites/areas, with the greatest
impact caused by the installation of VMS signs (free-text and car park).
Some level of improvement in human interaction is likely through the
regulation of traffic movements and the likely reduction of congestion,
particularly at junctions and along key routes. The proposals would also
serve to improve pedestrian circulation and access towards the town centre.
More information is contained in the worksheet overleaf.
Buckinghamshire County Council - -9-
CIF Bids 2008
PAR4
Aylesbury Urban Traffic Management and Control System Page: 21
Worksheet for Environment: Townscape
Worksheet for Environment: Townscape
Road Number: Not Listed Project Name: UTMC system
Project Stage: Pre-Public Consultation Date: 23/11/2009
Option Name / Number (if applicable): Aylesbury Urban Traffic Control System
For advice and guidance on completing this worksheet, please refer to WebTag Unit 3.3.8 -
www.webtag.org.uk/webdocuments/3_Expert/3_Environment_Objective/3.3.8.htm
Complete white cells only
Scale it Changes in Without Additional
Features Description Rarity Importance Substitutability Impact
matters Scheme Mitigation
Layout Central historic core Variety of Common in Generally Historic areas cannot N/A Neutral Replace planting
with medieval street development north Bucks common in north be easily replaced. removed as part of
pattern and radial road scales in sub- Bucks. Locally Modern development the works and
network connecting to urban areas. important historic areas can be replaced. provide screen
major settlements. Relatively elements. planting where
Range of sub-urban small scale potential local
housing developments historic core visual impact
and large industrial with larger might occur.
estates of generally scale industrial Improve
traditional modern and housing pedestrian access
housing estate layout, development generally.
interspersed by on the fringes.
pockets of public-open
space. Alignment of
Roman Road (Bicester
Road) visible to north-
west and Grand Union
Canal to east of
Aylesbury. Inner ring
road creates prominent
visual boundary around
town centre. Sub-urban
fringe constrained by
River Thame floodplain
to north and north-
west. Pockets of sub-
urban development
radiating from town
centre along transport
corridors.
Small number of Small scale Common in Generally Historic areas cannot N/A Neutral Replace planting
outlying historic outlying north Bucks common in north be easily replaced. removed as part of
settlements situated settlements. Bucks. Locally Modern development the works and
closely adjacent to important historic areas can be replaced. provide screen
modern development elements. planting where
areas. potential local
visual impact
might occur.
Density and Varied. Medium to high Variable. Common in Common in north Historic areas cannot N/A Neutral Combine or group
density development in Aylesbury itself north Bucks Bucks be easily replaced. signage/
mix
older areas with low- is prdominantly Modern development equipment to
medium density sub- comprised of a areas can be replaced. minimise on-street
urban estate range of large clutter.
development generally scale
concentrated to the developments
north, east and south, centred around
interspersed with public the more
open space. Medium compact
density industrial historic core.
development located to
the east and west of
the town centre.
Genrally medium Outlying Common in Common in north Historic areas cannot N/A Neutral Combine or group
density development in settlements north Bucks Bucks be easily replaced. signage/
older areas. are generally Modern development equipment to
of a low scale, areas can be replaced. minimise on-street
with a clutter.
generally
mature
appearance,
representing
range of
building styles
and periods.
Post war and
modern
housing
developments
are of a
traditional
modern layout.
Scale Residential areas N/A Common in Overall Historic areas cannot N/A Slight adverse- N/A
contain predominantly north Bucks importance at be easily replaced. increase to
two storey dwellings local and regional Modern development signage along
with a small number of levels. areas can be replaced. primary routes.
multi-storey flat
developments in sub-
urban locations. Large
scale buildings occur in
industrial and
commercial areas.
Central areas contain a
mix of development
scales areas.
Outlying settlements N/A Common in Common in north Historic areas cannot N/A Slight adverse- N/A
contain predominantly north Bucks Bucks be easily replaced. increase to
two storey dwellings Modern development signage along
areas can be replaced. primary routes.
Appearance Overall mature Historic core of Common in Locally, regionally Modern areas can N/A Overall slight Replace planting
appearance of older mature north Bucks and notionally generally be replaced. adverse removed as part of
areas with immature, appearance, important historic Appearance is impact- visual the works.
disturbed landscape representing elements. Modern controlled by Local improvements Combine or group
setting to post-war and range of developments not Planning Authority in area through signage/
modern developments. building styles important. regulation of equipment to
Historic core built on and periods. traffic minimise on-street
rock outcrop giving Post war and movement and clutter. Minimise
visual prominence to modern reduction of impact on
Conservation Area. housing congestion. historically
Ring road reinforces developments Negative sensitive
isolated position. are more visual impact sites/areas.
Buildings are extensive with of Visual
predominantly of brick a moderate Messaging
construction with local scale of Signage and
use of stone in older housing additional
areas. Areas of mature development traffic control
tree cover occur of an often equipment.
generally in and around traditional
parks and gardens. modern layout.
Overall mature Outlying Common in Locally important Modern areas can N/A Slight adverse Replace planting
appearance of older settlements north Bucks historic elements. generally be replaced. due to impact removed as part of
areas. Buildings are are small scale Modern Appearance is of additional the works.
predominantly of brick and generally developments not controlled by Local traffic Combine or group
construction with local situated along important. Planning Authority control/manag signage/
use of stone in older established ement equipment to
areas. transport equipment. minimise on-street
corridors. clutter. Minimise
Historic areas impact on
of mature historically
appearance. sensitive
Post war and sites/areas.
modern
housing
developments
are generally
of a small to
moderate
scale with a
traditional
modern layout.
Human Wide range of Varying scale Common in Regionally Can accommodate N/A Slight Improve
commercial outlets and of daily north Bucks important change beneficial- pedestrian access
Interaction
community/ public commercial rationalises generally and
facilities, in both interaction and enhances enhance Public
central, sub-urban and generally movement of Transport facilities/
outlying locations. concentrated traffic through accessibility.
Public transport hub around the Aylesbury
provides access town centre including
throughout the town and principle provisions for
and further afield. commercial Public
developments. Transport.
Other facilities Improves links
include with the town
hospitals, centre.
educational
establishments
and museums.
Morning and
afternoon peak
movements
with a general
increase in
recreational
based
activities at
weekends.
Range of small Generally Common in Locally important Can accommodate N/A Slight Improve
commercial outlets and small scale of north Bucks change beneficial- pedestrian access
community/ public daily rationalises generally and
facilities in outlying interaction and enhances enhance Public
locations. Public associated movement of Transport facilities/
transport provides with local traffic into accessibility.
access into Aylesbury businesses Aylesbury
and further afield. and schools including
etc. These are provisions for
generally Public
concentrated Transport.
into morning Improves links
and afternoon with the town
peak centre.
movements
with an overall
increase in
recreational
based
activities at
weekends.
Cultural Historical core of town Varying scale Conservation Locally Important Modern development N/A Moderate Further investigate
with medieval street appropriate to areas locally (Conservations can generally be adverse- impact of
pattern lies within extent of rare. Areas). replaced. Appearance is Increases proposals upon
Conservation Area. individual controlled by Local presence of on- historically
Further Conservation Conservation Planning Authority street signage sensitive sites and
Area situated south- Areas and within and provide alternative
east of the town centre. prominence/se adjacent to proposals or
Number of Listed tting of Listed historically mitigation where
buildings generally Building sites. sensitive possible.
concentrated around sites/areas.
historic core.
Outlying settlements Varying scale Conservation Locally Important Modern development N/A Moderate Further investigate
which contain appropriate to areas locally (Conservations can generally be adverse- impact of
conservation areas extent of rare. Areas). replaced. Appearance is Increases proposals upon
include Broughton, individual Registered Registered Parks controlled by Local presence of on- historically
Bierton, Hulcott and designations Parks and and Gardens Planning Authority street signage sensitive sites and
Hartwell. Number of and Gardens (such (such as Hartwell within and provide alternative
Listed buildings prominence/se as Hartwell House and adjacent to proposals or
generally concentrated tting of Listed House and Waddesdon), and historically mitigation where
around historic areas. Building sites. Waddesdon), Scheduled sensitive possible.
and Scheduled monuments are sites/areas.
monuments regionally or
are regionally nationally
or nationally important.
rare.
Land Use Range of land uses Appropriate to Common in Important factor in Changes to extent and N/A Neutral N/A
including industrial, scale of north Bucks contributing to form of residential areas
commercial, residential development. local and visual and public open space
and public open space. recreational are subject to planning
Generally regular amenity. requirements.
distribution of public
open space within sub-
urban areas (including
a number of public
parks). Smaller
amenity green-spaces
located along highways
and within housing
developments.
Aylesbury lies within a Appropriate to Common in Important factor in Changes in landscape N/A Neutral N/A
wider rural landscape scale of north Bucks contributing to setting (farming
setting with a development. local and visual priorities) are possible.
concentration of recreational Changes to extent and
domestic use amenity. form of residential areas
surrounding outlying are subject to planning
settlements. requirements.
Agriculture is still an
important factor on the
fringes of the sub-
urban environment.
Summary of County town, Varying scale Conservation Locally and Historic areas cannot N/A Slight adverse- Further investigate
areas locally regionally be easily replaced. increase to impact of
Character developed more of character
extensively over the appropriate to rare. important, both in Modern development signage and proposals and
last century through the scale of Otherwise historical and areas can be replaced. traffic control provide alternative
addition of large development/ common in cultural contexts. equipment proposals or
housing and industrial settlement. north Bucks along primary mitigation relating
developments. Historic Historic areas routes and to negative
core of town with are generally within and impacts where
medieval street pattern of a more adjacent to possible.
has a mature, attractive intimate historically
character. Ring road character. sensitive
and key transport Larger scale sites/areas.
routes disrupt the post-war and
continuity of the modern
townscape which has developments
been developed for are generally
predominantly less intimate
functional purposes. and of a less
varied
character.
Out of town Historic areas Conservation Locally, regionally Historic areas cannot N/A Slight adverse- Further investigate
settlements merge into are generally areas locally and nationally be easily replaced. increase to impact of
rural countryside which of a more rare. important, both in Modern development signage and proposals and
is predominantly intimate Otherwise historical and areas can be replaced. traffic control provide alternative
managed for character. Post-common in cultural contexts. equipment proposals or
agricultural use. war and north Bucks within and mitigation relating
Historic areas have a modern adjacent to to negative
mature, attractive developments historically impacts where
character. are generally sensitive possible.
less intimate sites/areas.
and of a less
varied
character.
Reference Source(s): BCC Local Plan
OS and Aerial mapping
Assessment Score: Slight Adverse
Qualitative Comments: The overall impact of the scheme is likely to be slight adverse as a result of the increase to signage and traffic control equipment along
(Special features/character) primary routes and within or adjacent to historically sensitive sites/areas, with the greatest impact caused by the installation of VMS signs
(free-text and car park). Some level of improvement in human interaction is likely through the regulation of traffic movements and the likely
(State 'None' if there are reduction of congestion, particularly at junctions and along key routes. The proposals would also serve to improve pedestrian circulation
none - do not leave blank) and access towards the town centre.
3.1.6 Environmental: Heritage of Historical Resources
The overall impact of the scheme is likely to have a slight adverse impact
based on the possibility that some of the signs may not fit with the form or
architectural character of the historic townscape/landscape.
See overleaf for the Heritage of Historical worksheet.
Buckinghamshire County Council - - 14 -
CIF Bids 2008
PAR Version 4.1d
PA
Aylesbury Urban Traffic Management and Control System Page: 22
Worksheet for Environment: Heritage of Historic Resources
Worksheet for Environment: Heritage of Historic Resources
Road Number: Not Listed Project Name: UTMC system
Project Stage: Pre-Public Consultation Date: 23/11/2009
Option Name / Number (if applicable): Aylesbury Urban Traffic Control System
For advice and guidance on completing this worksheet, please refer to WebTag Unit 3.3.9 -
www.webtag.org.uk/webdocuments/3_Expert/3_Environment_Objective/3.3.9.htm
Complete white cells only
Part 1 Part 2 Part 3
Features Description Scale it matters Significance Rarity Impact
Form Post-medeival built National for Listed Nationally for the Listed Range of built heritage Possible advrse visual
heritage. Includes farm Buildings and Parkland Buildings and Parkland not uncommon. Parkland impact as a result fo the
buildings, cottages and is not rare in this part of signage
public buildings. Also Buckinghamshire
historic landscaped
parkland
Survival Good survival of built Survival of these The survival of the built Not rare in Impact on the survival of
heritage and plan of heritage assests is heritage is considered to Buckinghamshire this type of site is
parkland consdered to be national be national negligible
Condition Good condtion of National for Listed Nationally for the Listed Sites of this type and in Impact on the conditon of
heritage assets Buildings and Parkland Buildings and Parkland good condiotn is not rare this type of site is
negligible
Complexity Complexity of the sites is Unknown Unknown Unknown Unknown
unknown
Context Many of the sites are The context of these The significance of the Sites of this type and in Based on the scheme
within their original sites is important and is context of these sites is context are not rare design the impact of the
context. Listed buildings considered to be consdiered to be regional proposed scheme is likely
that are part of Hartwell regional to national to national to be minimal
Parkland are in context.
Lesser so for uildings in
Period Post-medieval 1540+ Post-medieval Grade II National significance The sites are not Possible slight adeverse
Listed Buildings and common nor are they visual impact on Listed
Registered Parks are of rare Buildings, Conservation
national significance Areas and Registered
Park
Reference Source(s): English Hertiage National Monuments record;
Buckinghamshire Historic Environmnet Record
Defence of Britain Database
Assessment Score: Slight Adverse
Qualitative Comments: The overall impact of the scheme is likely to have a slight adverse impact based on the possibility that
(Special features/character) some of the signs may not fit with the form or architectural character of the historic townscape/landscape.
(State 'None' if there are
none - do not leave blank)
3.1.7 Environmental: Biodiversity
Earth Environment
There is a possibility that there will have been potentially contaminative
historic land uses in or around the site, and elevated levels of potential
contaminants may be present in the ground.
Ecology
Special character: none. Options in the Slight Adverse Category imply that
were development to proceed adequate mitigation and compensation
measures could be implemented to offset potential impacts. The data in
these tables is derived from desk study and walkover surveys. Revision may
be required depending on actual development footprints and subsequent
impacts.
More information is contained in the Biodiversity worksheet.
Buckinghamshire County Council - - 16 -
CIF Bids 2008
PAR Version 4.1d
PAR4
Aylesbury Urban Traffic Management and Control System Page: 23
Worksheet for Environment: Biodiversity
Worksheet for Environment: Biodiversity
Road Number: Not Listed Project Name: UTMC system
Project Stage: Pre-Public Consultation Date: 23/11/2009
Option Name / Number (if applicable): Aylesbury Urban Traffic Control System
For advice and guidance on completing this worksheet, please refer to WebTag Unit 3.3.10 -
www.webtag.org.uk/webdocuments/3_Expert/3_Environment_Objective/3.3.10.htm
Complete white cells only
Description of Scale (at which Trend (in Biodiversity
Importance (of Magnitude of Assessment
Area feature / attribute relation to and earth
attribute) impact score
attribute matters) target) heritage value
Earth Heritage Geology - Local Low N/A High During Construction: During Construction:
Contaminated Land (due to sensitivity Minor negative Slight adverse
and value of human (unmitigated) (unmitigated)
receptor) Neutral (mitigated)
During Operation:
Minor negative During Operation:
(unmitigated) Slight adverse
(unmitigated)
Neutral (mitigated)
Protected species Great crested newt International High - European Major decline High Neutral Neutral
protected species
Protected species Otter International High - European Regional increase High Neutral Neutral
protected species
Protected species Water vole National High - UKBAP Major decline High Neutral Neutral
priority species
Protected species Bats International High - UKBAP General decline High Minor negative Slight adverse
priority species
Protected species White Clawed International High - European High Neutral Neutral
Crayfish protected species
Protected species Badger National Medium - protected Unknown Medium Neutral Neutral
species
Protected species Reptiles National Medium - protected Decline Medium Neutral Neutral
species
Protected species Birds protected National Medium - Nesting Rapid decline High Minor negative Slight adverse
under W&C Act birds protected Potential loss of
1981, Birds of nesting habitat,
Conservation partially offset by
Concern appropriate planting
Urban landscape Black poplar National High Unknown Medium Minor negative Slight adverse
Urban landscape Trees (general) Local Lower Unknown Medium Minor negative as Slight adverse
for "birds", above
Urban landscape Hedges Local Lower Decline High Minor negative as Slight adverse
for "birds", above
Urban landscape Grass verges Local Negligible Unknown Low Minor negative Neutral
Invasive species Japanese knotweed Local Negligible Unknown Lower Positive if removed / Slight beneficial
treated
Reference Source(s): Environmental records from Buckinghamshire and Milton Keynes Records Centre
Report on the Species & Habitat Review June 2007
Assessment Score: Slight Adverse
Earth Environment- There is a possibility that there will have been potentially contaminative historic land uses in or around the
site, and elevated levels of potential contaminants may be present in the ground. Ecology- No statutory sites of national
Qualitative Comments: importance or non-statutory local sites of regional/county importance will be affected. Signage is currently not anticipated near to
the non-statutory Biological Notification Site, the River Thame at Stone Bridge, and the Local Wildlife Site at Moat Meadows, The
Vatches. Hence, there are no likely impacts to the BNS or LWS from the existing scope of works. Potential impacts on trees
(Special features/character) (including locally important black poplar), hedgerows, a pond, grassed road verges and ditches. Quantitative assessment will
depend on the final design but is likely to negatively impact on a small number of trees, hedges and ditches, but especially
grassed road verges and may impact on a pond located close to the footway in Walton Street. Impacts are of local importance.
(State 'None' if there are
Protected species surveys/assessments to be carried out if there are significant impacts on suitable habitat. Presence of
protected species may raise the level of impact significance. Options in the Slight Adverse Category imply that were development
none - do not leave blank)
3.1.8 Environmental: Water Environment
Proposed installation of traffic control measures are unlikely to significantly
affect the water environment.
The assessment has been rated as Neutral.
Buckinghamshire County Council - - 18 -
CIF Bids 2008
3.1.9 Environmental: Physical Fitness
No significant impact.
The impact has been rated as Neutral.
Buckinghamshire County Council - - 19 -
CIF Bids 2008
3.1.10 Environmental: Journey Ambience
Generally, pedestrians and cyclists will be relatively unaffected by the
scheme, however real time information at bus stops will reduce frustration
and uncertainty for public transport users. VMS will reduce frustration and
uncertainty for vehicular users and allow informed journey planning.
The worksheet overleaf contains more information.
Buckinghamshire County Council - - 20 -
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PAR Version 4.1d
PA
Aylesbury Urban Traffic Management and Control System Page: 26
Worksheet for Environment: Journey Ambience
Worksheet for Environment: Journey Ambience
Road Number: Not Listed Project Name: UTMC system
Project Stage: Pre-Public Consultation Date: 23/11/2009
Option Name / Number (if applicable): Aylesbury Urban Traffic Control System
For advice and guidance on completing this worksheet, please refer to WebTag Unit 3.3.13 -
www.webtag.org.uk/webdocuments/3_Expert/3_Environment_Objective/3.3.13.htm
Complete white cells only
Factor Sub-factor Better Neutral Worse
Cleanliness
Facilities
TRAVELLER CARE
Information
Environment
TRAVELLERS' VIEWS -
Frustration
TRAVELLERS' STRESS Fear of potential accidents
Route uncertainty
Reference Source(s): WebTag Unit 3.3.13 (Journey ambience Sub-Objective), Design Manual for Roads and B
Assessment Score: Moderate Beneficial
Qualitative Comments: Generally, pedestrians and cyclists will be relatively unaffected by the scheme, however real time information
at bus stops will reduce frustration and uncertainty for public transport users. VMS will reduce frustration and
(Special features)
uncertainty for vehicular users and allow informed journey planning.
(State 'None' if there are
none - do not leave blank)
3.2 Safety Objective
3.2.1 Safety: Accidents
The overall impact of the scheme is not likely to change the number of
accidents in Aylesbury.
The impact has been summarised as Neutral.
Buckinghamshire County Council - - 22 -
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3.2.2 Safety: Security
With the implementation of CCTV at junctions and the use of ANPR for traffic
monitoring security will be improved.
The net impact has been rated as Slight Beneficial.
Buckinghamshire County Council - - 23 -
CIF Bids 2008
3.3 Economy Objective
3.3.1 Economy: Public Accounts
While modelling has been carried out using a VISSIM model of Aylesbury
town centre which includes the A41 Bicester Road corridor it is not a
complete model of the town. As a result analysis of the benefits which could
be attributed to the implementation of UTMC do not reflect the impact of
either journey time improvements or re-routing which might result in
Aylesbury as a whole.
Having this in mind there is no doubt that there could be significant benefit
from the scheme as there is some 200 hours saved in the AM peak hour in
the town centre, which could be compared to the 155 hours saved from the
A41 Bicester Road Primary Public Transport Corridor this gives a BCR of
4.62. This could equate to a BCR of between 4 and 5 but this should be
taken as an optimistic assessment as it is likely that if the model were
extended to include more of the town and specifically the other fixe radial
routes into the centre the delays due to congestion would limit the overall
benefits.
For the present scheme assessment it would be realistic to state that the
UTMC proposals represent value for money.
Buckinghamshire County Council - - 24 -
CIF Bids 2008
3.3.2 Economy: Transport Economic Efficiency: Business Users
A comparison can be made with the A41 Bicester road economic evaluation
using the same traffic forecasts which provided some £16.7M user benefits
from an AM peak journey time saving of 155 hours.
Buckinghamshire County Council - - 25 -
CIF Bids 2008
3.3.3 Economy: Transport Economic Efficiency: Consumers
A comparison can be made with the A41 Bicester road economic evaluation
using the same traffic forecasts which provided some £16.7M user benefits
from an AM peak journey time saving of 155 hours.
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CIF Bids 2008
3.3.4 Economy: Reliability
The scheme will enable much better operational management which will
make journeys more predictable and reliable by all modes.
The impact has been assessed as Moderate Beneficial.
Buckinghamshire County Council - - 27 -
CIF Bids 2008
3.3.5 Economy: Wider Economic Impacts
The scheme is an integral part of the wider Aylesbury Transport Strategy
designed to deliver planned growth of 16,800 dwellings and 16,800 jobs
within the town by 2026.
The impact is assessed to be of Slight Benefit.
Buckinghamshire County Council - - 28 -
CIF Bids 2008
3.4 Accessibility Objective
3.4.1 Accessibility: Option Values
The Aylesbury Transport Study has shown that car ownerships are high with
81% of households having access to one or more cars. This is reflected in
trip making with the car being the primary mode (either as driver or as
passenger) in 66% of trips throughout the day.
The agreed Aylesbury Transport Strategy relies upon the creation of an
environment where the proportion of car borne trips is reduced by at least
11% against a planned increase of population of approximately 50% by
2026. For this fundamental target to be met or exceeded then, quite clearly,
the wider strategy needs to create a background of increasingly attractive
and competitive sustainable transport options. This, in turn, will make travel
opportunities by bus, rail, car-share, walk and cycle much more realistic
options available to all travellers in a larger and more affluent future
Aylesbury.
The UTMC scheme is a key part of the Aylesbury Strategy and will work
across all aspects to:-
• provide the tools to support an increasingly proactive operational
management regime as a key part of the County Council’s response to
the TMA;
• provide the mechanisms to supply effective network data with which to
influence mode, route and time of journey for travellers; and
• provide the tools to monitor and drive continuous improvement in network
performance across Aylesbury
Development of 16,800 dwellings (approximating to a 50% increase in
population to over 100,000 residents) plus a similar number of new jobs are
now required in the SE Plan at the urban area of Aylesbury to 2026. The
UTMC scheme, as described above, will provide the means and
mechanisms to underpin all other elements of the strategy and is considered
essential to its continued successful roll-out.
In line with WebTag unit 3.6.1 and in view of the number of residents
impacted then the nature and scope of the benefit is considered ‘moderate’
to ‘strong’ beneficial. However, the scheme will provide the means to deliver
better transport services and to change/influence user perception rather than
the improved services themselves which will need further actions from the
wider strategy. Consequently, the impact is summarised as Moderate
beneficial to avoid any element of double counting.
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3.4.2 Accessibility: Severance
A prime objective of UTMC is to provide a network management capability
that can:
• relate and adapt more readily to the varying needs of the travelling public
• respond in real-time to local conditions
• redress any imbalance of priority for different travel modes, not least
vulnerable road users
• accommodate more readily the inclusion of formal crossing facilities as
standard on new and improved traffic signal controlled junctions
It is recognised that the coordination of traffic movements and establishment
to a degree of platoons, achieved through UTC can be effective in creating
gaps in traffic flow. This assists crossing movements by pedestrians
throughout the network where formal crossing facilities do not exist.
While potential exists to focus on issues of severance through employment
of UTMC, its benefits are wide-ranging. For the purposes of this submission
the impact is summarised as Neutral.
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CIF Bids 2008
3.4.3 Accessibility: Access to the Transport System
One of the principal aims of the UTMC Bid scheme is to improve the quality
of bus services across Aylesbury by:-
• supporting positive priority for bus services;
• supporting enhancements to bus journey reliability; and
• providing extensive real time passenger information.
These aims are central to the wider sustainable transport strategy which
underscores delivery of a challenging growth commitment of 16,800
dwellings to 2026.
The existing population of 70,000 residents is estimated to grow to in excess
of 100,000 as a result of required development by 2026. The nature of the
scheme itself will not bring bus services closer to residents per se although
the quality of all services will improve significantly and this will impact on the
County Council’s target to deliver at least 11% mode shift away from the car.
However, it is proximity to services which is the thrust of this particular sub
objective and so after consideration of WebTag unit 3.6.3 it has been
decided that the ‘Access to the Transport System’ sub-objective is not
relevant to the bid scheme. Consequently the impact is summarised as
Neutral.
Buckinghamshire County Council - - 31 -
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3.5 Integration Objective
3.5.1 Integration: Transport Interchange.
The proposed scheme does not directly involve any elements related to
freight or passenger interchange. Therefore the scheme should be rated as
Neutral.
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CIF Bids 2008
3.5.2 Integration: Land Use Policy
Land-Use Policies or Proposals
Aylesbury Vale Local Plan saved policies and
Local policies from the emerging Local Development
Framework
Saved policies from the Buckinghamshire
Regional Structure Plan, the Milton Keynes and South
Midlands sub regional Strategy and Policies from
the emerging South East Plan (RSS)
PPS3 Housing, PPG4 Industrial and commercial
development, PPS6 Planning for Town Centres,
National
PPS11 regional Spatial Strategies, PPS12 Local
Spatial Planning etc
Reference Source(s): All above documents. See also Volume 3 of this
application, ‘Supporting Evidence’, Section 2: Planning for Growth in
Aylesbury, particularly sub-sections 2.2 and 2.6 to 2.10 inclusive.
Assessment Score: Beneficial
Qualitative Comments: The bid scheme is an integral part of the much wider
Aylesbury Transport Strategy which has been developed in order to deliver the
underlying sustainable transport agenda which supports the land use
commitments of the South East plan as being rolled out within the emerging
Aylesbury Vale Local Development Framework as a replacement to the Local
Plan
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3.5.3 Integration: Other Government Policies
Government Department Policies Helped Policies Hindered
Transport Safety None
Promoting sustainable
Transport None
transport
Transport Accessibility None
Transport Congestion relief None
Treasury, Community and Economic growth,
None
Local government regeneration and diversity
Cabinet office Social inclusion None
Health Health None
National and regional
Trade and Industry None
competitiveness
Defra Environmental protection None
Reference Source(s): PPG13 Transport, Traffic Management Act 2004, South
East Plan, The Future for Transport: A Network for 2030, BCC LTP2 etc
Assessment Score: Beneficial
Qualitative Comments: The bid scheme is an integral part of the much wider
Aylesbury Transport Strategy which has been developed in order to deliver the
underlying sustainable transport agenda which supports the land use growth
commitments of the S E Plan as being rolled out within the emerging Aylesbury
Vale Local Development Framework as a replacement to the Local Plan. In turn
this very much supports all the LTP objectives to support accessibility, social
inclusion, safety and economic prosperity across Aylesbury.
Buckinghamshire County Council - - 34 -
CIF Bids 2008
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