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Contract Number 2006-130
Project Number 59195
DRAFT
Michigan Department of Transportation
ATMS Software Design Study
ITS Subsystem and Equipment Operational Assessment Memorandum
June 25, 2007
1. Introduction
The purpose of this report is to document existing conditions with respect to ITS field devices
and video distribution at the MITS Center and the West Michigan TMC. In addition, it makes an
evaluation regarding whether any legacy field devices should be upgraded as part of the ATMS
procurement in lieu of investing in software development to integrate them into the new system.
The intent of this scope item was to determine whether it would be easier to replace field
hardware rather than invest in ATMS device driver development and integration with legacy
systems. The findings of this effort are that no field modification are required for the ATMS
deployment, other than what is currently underway or planned in separate projects.
Furthermore, the legacy devices that would have posed a potential challenge for ATMS
integration—Metro Region DMS and detectors—all run on the same 2070 controller software,
which should simply the integration task.
2. System Base-Line Data Collection
The Consultant Team visited the MITS Center and the West Michigan TMC and reviewed central
system software operations. In addition, on-site reviews of each center were conducted. In
addition to stakeholder meetings, the West Michigan TMC was visited on September 20, 2006, as
part of one-on-one stakeholder meetings and the MITS Center was visited on March 8, 2007, in
addition to the stakeholder meetings that were held. In addition, many documents were
reviewed including:
ATMS/ATIS System Design Document (Iteris)
MaintStar database inventory output
Metro Region ITS Telecommunications Study (PB)
West Michigan ITS System As-Built Block Diagrams
I-94, I-69 & I-96 ITS Expansion PS&E Package (HNTB)
Grand Valley Metropolitan Council ITS Strategic Deployment Plan (HNTB)
This section documents our findings with respect to the existing conditions, focusing on the facts
relevant to the prospective bidder on the ATMS RFP.
2.1. Detroit Area ITS Deployment
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 1 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
Currently in Michigan, MDOT operates two transportation management centers, the Michigan
ITS Center (MITSC) located in Detroit and the West Michigan Traffic Management Center (TMC)
located in Grand Rapids. The MITS Center is a mature, 24/7 operation with an extensive
deployment of freeway monitoring, freeway management, and traveler information devices. At
the MITSC, MDOT is co-located with Michigan State Police (MSP), has a direct T-1 connection
with the Road Commission of Oakland County (RCOC) TOC and supports freeway courtesy
patrols. Operators at the center actively monitor the freeway network and assist in and track
incident management activities.
Existing Conditions
The MITS Center, located at 1050 6th Street in Detroit, operates ITS field devices on
approximately 200 miles of Metropolitan Detroit Freeways. Major ATMS components are: 116
inductive loop detector and magnetometer vehicle sensor stations, 64 changeable messages signs
(CMS), 165 closed-circuit television (CCTV) cameras, an overheight detection system, HAR
beacons and a speed warning system. Additional devices include 2070 advanced traffic
controllers, and ramp meters which are no longer in use.
All DMS and loop detectors are connected to 2070 controllers that act as communications servers.
HAR beacons are also controlled by 2070s. The 2070 software was developed by Iteris for MDOT
and documentation is available. MDOT currently has two types of 2070 controllers in use: Matrix,
which were purchased prior to 2000, and Eagle, which were purchased since. Functionally, the
Iteris software is identical to the two controller types.
The communications networks for data and video devices integrated into the MITS system are
depicted in the figures at the end of this section. The primary communications infrastructure
consists of a leased OC-48 SONET fiber ring. Some devices, such as cameras and DMS at the
airport are connected via leased T-1 lines. On the SONET ring are five hubs, off of which are five
nodes. Each Node operates its own Communications Region within the MDOT
telecommunications network. A particular Node’s Region will include all of the field devices that
it connects to the network. Figures 1 and 2 show this network for data and video
communications, respectively.
The MITS Center acts as the source or destination of data throughout the network, and houses
the system’s central processing infrastructure. It acts as a Network Node since it is located on the
OC-48 SONET Fiber Ring. The fiber backbone primarily carries video signals on 32 of the 48
channels back to MITSC using one video per channel. An additional channel (making 33 total) is
used to exchange MDOT video with the Road Commission for Oakland County’s (RCOC) Traffic
Operations Center (TOC). Lower speed data – including camera control, CMS messages, and
traffic poll/responses – are carried along the Fiber Ring in four other channels.
11 GHz Microwave Wireless Connections link the fiber hub Nodes (directly on the Fiber Ring)
with the 5 remote Node locations. This communication medium is used to multiplex the 900 MHz
and 23 GHz (data/video) onto a single 11 GHz wireless connection to/from the corresponding
fiber hub Nodes where it is placed onto/taken off of the Fiber Ring.
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 2 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
23 GHz Microwave Wireless Connections link Network Nodes and Field Devices. 23 GHz links
are generally in place to carry video from a camera to the Network Node, as well as to carry data
from the MITS Center directly to cameras for pan-tilt-zoom (PTZ) control.
MITS ITS Expansion/Upgrade Projects
At the MITS Center, multiple expansion and upgrade projects are occurring as well as multiple
maintenance and enhancement projects. From an ATMS software deployment standpoint, the
most significant of these are the I-96, I-69 and I-696 expansion projects. Typically referred to as
simply “The Expansion,” a key element of this project will be to migrate the SONET based
communications system to a digital Internet Protocol(IP)/Ethernet based communications system.
Under this system, all video transmission will be digital and all new devices installed under the
Expansion will be native IP devices. For existing video control and the 2070s controlling detectors
and DMS, the communications at the edge will be serial and terminal servers will be used at the
backbone communications hubs and at the MITS Center to maintain serial links to these devices.
A second project that will be let shortly that has significant impacts on the ATMS software
deployment is the I-96 upgrade. Referred to as the “Upgrade,” this project will replace aging
equipment on the I-96 corridor with native IP devices. These projects are the initial phase-out of
the 2070 controllers to communicate with field units.
As an interim solution for camera control and switching, Cameleon software by 360 Surveillance
is being installed on a new video control server to replace the existing Kalatel joysticks and video
switching equipment. This will coexist with the existing ATMS software until the new ATMS is
installed, replacing both with a single integrated solution.
2.2. Grand Rapids Area ITS Deployment
Although traffic management and incident management have been in place for over 30 years in
Grand Rapids, the West Michigan TMC, which has been operated by MDOT since April of 2006,
represents a growing center. Currently, the West Michigan TMC is focused on weekday
operations. Overnight and weekend support is provided by the City of Grand Rapids Police
Department. The center uses CCTV cameras to support freeway monitoring and incident
management, dynamic message signs (DMS) to provide traveler information, and custom
software to log incident management logging activities. The center shares video with the City of
Grand Rapids and the Grand Rapids Police Department
The MDOT West Michigan TMC’s current field device deployment includes 17 cameras, 10
Dynamic Message Signs (DMS), and 4 Variable Speed Signs (VSS) owned by MDOT. The
infrastructure is connected to the workstations at the TMC via a variety of communications paths,
primarily serial over fiber optic cable. Under current operating procedures, these devices are
controlled by the Grand Rapids Police Department from their dispatch center in downtown
Grand Rapids. The city maintains the MDOT infrastructure under an intergovernmental
agreement. For maintenance purposes, the City’s traffic safety group can monitor and control
these devices. The Grand Rapids Police, the MDOT West Michigan TMC and the City of Grand
Rapids are connected via fiber in a LAN configuration.
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 3 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
At the West Michigan TMC, an expansion of the TMC and enhanced center-to-center and field-
to-central communications are planned. Also, in addition to the aforementioned infrastructure,
MDOT is planning for additional field devices including approximately 8-10 cameras, 2-3 DMS,
and a freeway traffic detection system with 70+ microwave vehicle detectors, which will be
added or activated during the duration of this contract.
Cameras are made by Cohu and DMS are a combination of Vultron and Skyline. Both are NTCIP-
compliant. The Vultron signs were built in 2000. Cameras are currently controlled by Cohu
central software and all DMS (both Vultron and Skyline) are controlled by Skyline central
software. The ATMS will replace these software applications and control all devices within a
single platform.
2.3. Lansing
MDOT is in the process of designing and constructing a new ITS Laboratory in Lansing at C&T
Building on Ricks Road at the State’s Secondary Complex. This ITS Laboratory will be used to
investigate new cutting edge technologies in the intelligent transportation world. In addition, it
will serve as a backup site for the ATMS procured under this contract, housing servers and
communications equipment to provide redundancy and backup device control for any TMC in
the state, including the MITS Center, West Michigan and other future TMCs throughout the state.
Table 1 following summarizes the major subsystems currently in use at the two existing centers.
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 4 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
Table 1. MITS Center and West Michigan TMC Major Subsystems and Activities
Subsystem/Function MITS Center West Michigan TMC
Field CCTV
Monitoring and YES YES
Control
DMS YES YES
Detection YES NO
YES (available but not used
Ramp Metering NO
currently)
Highway Advisory
YES NO
Radio
Incident Management
YES YES
Tracking
Freeway Courtesy
Patrol Coordination YES NO
and Dispatch
PSAP Computer Aided
Dispatch (CAD) YES (State Police via
Integration
7AM-7PM and Select
Weekends, GRPD Operates
Span of Operation 24/7
during Non-MDOT Staffed
Hours
Traveler Information
Website; City of Grand Rapids Police,
Major Interfaces Local Media Outlets, Road City of Grand Rapids Traffic,
Commission of Oakland Local Media Outlets
County
3. ITS Subsystem and Equipment Operational Assessment
This section documents our findings with respect to the existing conditions, focusing on the facts
relevant to the prospective bidder on the ATMS RFP.
Field Closed Circuit Television (CCTV). Due to the impending upgrade to IP video
distribution, no effort was made by the Consultant Team to observe CCTV deployments,
video stream quality or maintenance information. Once the video distribution system is
upgraded to IP, which is scheduled to be completed prior to the ATMS deployment, the
characteristics of the video will change.
Dynamic Message Sign (DMS). The current DMS deployments are relatively
straightforward. At the MITS Center, all DMS are controlled by 2070 controllers.
Specifications for the 2070s are standard and the software is owned by MDOT and
documentation for both is available. DMS in Grand Rapids are NTCIP-compliant Vultron
(older) and Skyline (newer) so no field or ATMS modifications are required.
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 5 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
The functional requirements with respect to the DMS subsystem are documented in the
forthcoming Software Requirements Specification.
Detection Subsystem. Current detectors run on the same 2070s as the DMS subsystem;
this is not a separate case. Planned detector deployments in Grand Rapids and Detroit
will use side-fire microwave detectors whose make has not yet been determined. The
ATMS vendor will be required to produce drivers for these detectors.
Central Video Subsystem. The video wall at the MITS Center is being upgraded in a
separate future project. Video sharing and distribution devices are being upgraded as
part of the MITS Center expansion project. It will be a requirement of the ATMS to
manage video with MDOT TMCs and distribute that video to TMC partners and the
media.
Advanced Traveler Information System (ATIS). MDOT has several ATIS outlets
currently in place and there are many changes currently underway. DIT is currently
developing a replacement to the Metrocommute web site, termed “MI Drive,” which has
been the primary web outlet for MDOT Metro Region traveler information.
This web site pulls data from the MITS Center, which are pipe-delimited flat files from an
ftp site. There is one for sensor data (with approx. 5 fields) and one for incident data
(with approx. 30 fields). The web site development group is concerned primarily with the
human factors and user experience considerations of the web site. Therefore, they have
verbally agreed to modify their database to accommodate whatever data formats the
ATMS will provide. Therefore, it will be a requirement for the ATMS vendor to supply a
data feed (e.g., XML file) that conforms to recognized ITS standards.
In addition, to the aforementioned web site, the same group maintains a lane closures
web application, which is essentially a database with a web front end, where data is
entered by the various TSCs across the state. There is a need for MITS Center and West
Michigan TMC Operators to be able to view in the ATMS map the current lane closures
information in that database.
Lane closures are typically entered well in advance of the event so this database will
push updates to the ATMS no more often than once per day.
Figure 1 depicts the current data flows between the MITS Center and the MI Drive site as
they exist currently.
Vehicle Infrastructure Integration (VII). The Consultant Team has kept abreast of the
latest developments in VII, including DUAP and test bed projects. For purposes of the
ATMS, VII integration will be an enhancement under a future integration contract. VII is
not defined to the point that requirements can be developed for the ATMS RFP.
Gary, Chicago, Milwaukee (GCM) Corridor. Future integration with the GCM Corridor
ATIS web site is planned for the future.
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 6 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
Other ITS subsystems either deployed or planned:
o Road Weather Information Systems (RWIS) projects are currently underway in
the Superior and North regions. These projects include efforts to define Concepts
of Operations, which will directly feed into ATMS functional requirements. Due
to the timing of these projects, RWIS integration will be required of the ATMS on
a basic level based on market availability. Enhancements to the RWIS module of
the ATMS may be included in a future system integration project pending the
results of the aforementioned studies.
o De-icing system in Grand Rapids. MDOT has an ice prevention system, which
spreads a de-icing fluid on the roadway when given a command. It does not
operate automatically. The system is accessed via a dial-up connection. Based on
stakeholder input, it should be considered a low priority for integration into the
ATMS. Based on input gained from vendor questionnaires, this is not a feature
that has widespread support in the marketplace. Because there is only one of this
type of system in the state and since it is not a high priority, the cost does not
outweigh the necessary cost and effort of integration with the ATMS.
o Variable Speed Signs (4) in Grand Rapids. These are controlled with the
Skyline central system software similarly to all DMS in Grand Rapids.
o Ramp Meter System in Detroit. Not being used. There is no need to replace or
integrate these devices.
o Highway Advisory Radio (HAR). HAR is not being used at this time.
4. Conclusions
The intent of this ITS Subsystem and Equipment Operational Assessment was to determine
whether it would be easier to replace field hardware rather than invest in ATMS device driver
development and integration with legacy systems. Due to the fact that the DMS and detector
deployments in the Metro Region all use the same 2070 software for control, and due to the fact
that the video distribution system is being upgraded as part of the expansion project, it is our
determination that no field hardware replacement in the Metro Region is warranted as part of the
ATMS upgrade. Furthermore, since the West Michigan ITS deployment consists of NTCIP-
compliant DMS and a single vendor’s cameras (Cohu), and since there are no existing detectors,
the same conclusion holds there as well.
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 7 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
Figure 1. Existing MITS Data Communications Network (pre-expansion)
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 8 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
Figure 2. Existing MITS Video Communications Network (pre-expansion)
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 9 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
MDOT video & data communications pathways
IMC Microwave Link
CCTV Video
CCTV Video CCTV Video
PTZ Coax
Video signal
on
on Coaxial
Twisted
Cable
Pair Many Microwave
PTZ Microwave Dish
on Coaxial Dishes
On Pole
Twisted
Cable On Tower
Pair
Field Cabinet--
Optelecom Video
Fiber Tranciever
Hub Shelter
Fiberoptic Cable (A node on the OC48 IMC Microwave Links
Ring)
Spread Spectrum
Many Microwave Many Microwave
Spre Dishes Dishes
ad S
p ectr On Tower On Tower
um
Spread Spectrum Spread Spectrum Node 3 Shelter
Antenna At Site Antenna On Tower (A node not on the
OC48 Ring)
Spread Spectrum
2070 Field Antenna At Site
Controller
2070 Field
Controller
Figure 3. MITS Video & Data Communications Pathways (pre-expansion)
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 10 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
Data and Video Communications Paths
Video Video
To PTZ PTZ
Video Switch Matrix Video Switch Matrix
Video Grass Valley Codec
Wall
MITSC Video Node 6 Field
ig
23 G
Video
11 Gig
Video 11 GHz
DS3 Video T/F Node 7 CMS
ig
11 G
Gig
Cam 900 MHz
23
Ctl CMS,
Fujitsu OC-48 Opcom Mux
DS3 2070 2070
STS-1 Cylink 23 GHz
STS-1 CMS, video &
2070 control
Fujitsu OC-48
Grass Valley Codec Cam
STS-1 STS-1
TL-1 Cam Ctl
Splitter Commands Ctl Loops
Cam
Ctl
23 Gig 900 Cylink
MH
Opcom Mux Cam Cam
z
Ctl Ctl
RS232
Digiboard KFIB CMS,
Splitter 2070
Cylink
23 GHz
CamIF 24 Voice video &
Channel T1 control 11 Gig
Newton Field Network Node 7
Workstation Video
Cam HAT 23 Gig
Ctl
Copernicus
Galileo CamIF
Cam
To/From
Cam Ctl
RCOC
Ctl
Workstation
EGDS Network TOC Intertie
Splitter
Cam
Ctl
Figure 4. MITS Video & Data Communications Pathways (pre-expansion)
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 11 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
Figure 5. Typical Node Diagram
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 12 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
Figure 6. Typical Network Hub Video Communications
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 13 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
Figure 7. Typical CCTV Camera Control and Video
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 14 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
Figure 8. Typical 2070 Controller Site Configuration
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 15 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
Figure 9. Typical Remote Node Spread Spectrum Communications
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 16 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
422
KTS-83
Airport CCTV Expansion 422
Splitter
422
Kalatel Video
Switching Matrix
KTS-83
Splitter
Field MITSC
422
Kalatel Video
Cortec Cortec Distrib. Amps
Vid
Video Serial T1-pstn Serial Video Video
Encoder Adtran CSU/DSU Adtran CSU/DSU Decoder 422
Video
Ctl
Kalatel Video
Cortec Cortec Titler
Vid
Video
Video Serial T1-pstn Serial Video
422
Encoder Adtran CSU/DSU Adtran CSU/DSU Decoder
Video
Ctl
422
Vid Cortec Cortec
Video Serial T1-pstn Serial Video Video
Encoder Adtran CSU/DSU Adtran CSU/DSU Decoder
Video
Ctl
Vid Cortec Cortec
Video Serial T1-pstn Serial Video Video
Encoder Adtran CSU/DSU Adtran CSU/DSU Decoder
Video
Ctl
Cortec Cortec Video
Vid 422
Video Serial T1-pstn Serial Video
Encoder Adtran CSU/DSU Adtran CSU/DSU Decoder
Video Video
Ctl 422
Vid Cortec Cortec
Video
Video Serial T1-pstn Serial Video 422
Encoder Adtran CSU/DSU Adtran CSU/DSU Decoder
Video
Ctl
Video
Vid Cortec Cortec
Video Serial T1-pstn Serial Video
Encoder Adtran CSU/DSU Adtran CSU/DSU Decoder
Video
Ctl
Vid Cortec Cortec
Video Serial T1-pstn Serial Video
Encoder Adtran CSU/DSU Adtran CSU/DSU Decoder
Video
Ctl
Figure 10. Airport Expansion CCTV Communications
ITS Subsystem and Equipment Operational Assessment Memorandum June 25, 2007
Page 17 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
Figure 11. MDOT Proposed ITS Device Communications Network Topology, MITSC Expansion Project Design Drawings
ITS Subsystem and Equipment Operational Assessment Memorandum June 22, 2007
Page 18 of 21
Contract Number 2006-130
Project Number 59195
DRAFT
Figure 12. Primary Ethernet Backbone Network Topology, MITSC Expansion Project Design Drawings
ITS Subsystem and Equipment Operational Assessment Memorandum June 22, 2007
Page 19 of 21
DRA
Figure 13. Grand Rapids Inventory Drawing 1 (attached)
Figure 14. Grand Rapids Inventory Drawing 2 (attached)
ITS Subsystem and Equipment Operational Assessment Memorandum June 22, 2007
Page 20 of 21
Current MITSC ATMS to WebSite Information Flow DRA
Friday, May 04, 2007
Detector Data
Detector Data (Flat file MDOT Data MDOT
Current ATMS Database with detector unique ID) Exchange FTP WebServices
Detector Export Site Oracle Database
XML File Created CGI ESRI MAP with
from MDOT Web ATMS Objects on map
and attribute table with
MDOT MI
Services Oracle
unique ID Drive Website
Database
Incident Data
Incident Data (Flat file
with predefined Unique MDOT Data MDOT
Current Incident Form segment ID ) Exchange FTP WebServices
Database Export Site Oracle Database
XML File Created CGI ESRI MAP with
from MDOT Web ATMS Objects on map
and attribute table with
MDOT MI
Services Oracle
unique ID Drive Website
Database
CCTV Image Data
Jpeg files with CCTV MDOT Data
CCTV Image Screen
unique ID Exchange FTP MetroCommute
Captures (???) from
Site
tours on switch
CGI ESRI MAP with
ATMS Objects on map
and attribute table with
MDOT MI
??????????
unique ID Drive Website
Figure 1. Current MITSC ATMS Web Site Information Flow
ITS Subsystem and Equipment Operational Assessment Memorandum June 22, 2007
Page 21 of 21
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