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Meridian Street Corridor

VIEWS: 6 PAGES: 22

									Traffic Engineering Review Summary

38th Street to Kessler Boulevard


For Historic Midtown Initiative (HARMONI)
By HNTB Corporation

June, 2010
Existing Conditions
   • 38th Street – 54th Street
      • 36 feet wide
      • 35 mph speed limit

   • 54th Street – Westfield Boulevard
       • 50 feet wide
       • 40 mph speed limit
   • Westfield Boulevard – Kessler Boulevard
       • 60 feet wide
       • 40 mph speed limit

   Traffic Volume = 25,000 – 30,000 veh/da
Meridian Street Speed Data

                                            85th Percentile Speed
                                                   Range

                                   Speed
     Location          Direction    Limit   Off-Peak    PM Peak
                          NB        45       35-40         --
    61st Street
                           SB       45       45-50         --
                          NB        40       45-50       40-45
    55th Street
                           SB       40       35-40       40-45
  49th Street              SB       35         --        35-40
  Source data provided by SKA
Meridian Street Crash Data
39th Street – Westfield Boulevard, 2004 - 2007

                                            Total        Injury      Highest
   Intersection                           Accidents     Accidents   Annual (yr)
   54th Street*                              28             9           13 ('05)
   46th Street                               25             7           11 ('04)
   52nd Street                               18             2           10 ('04)
   56th Street                               11             1            5 ('04)
   Westfield Blvd.                            8             1            4 ('05)

   *54th Street accident types:
                       Failure to yield           71%
                 Following too closely            17%
                         Unsafe speed              4%
                  Improper lane usage              4%
                                 Other             4%
54th Street Traffic Signal
 Condition B - Interruption of Continuous Traffic*
                        Major Street Volume                High Minor Approach Volume           Volumes
     Time        Total of Both Approaches (VPH)                          (VPH)                 Meet Hourly
    Period            Actual             Required              Actual            Required       Criteria?
  7:00 - 8:00          2002                 525                  81                  53           YES
  8:00 - 9:00          1991                 525                  116                 53           YES
  3:00 - 4:00          1748                 525                  68                  53           YES
  4:00 - 5:00          2178                 525                  100                 53           YES
  5:00 - 6:00          2407                 525                  119                 53           YES
  8th Hour**           1565                 525                  77                  53           YES



  * Reduced volume criteria (70%) due to high speeds (40 mph or greater) on Meridian Street.
 ** 8th highest traffic hour volumes estimated to be 65% of the peak hour volumes.



Traffic Signal appears to be warranted by volume and accidents.
Pedestrians
Safe Route to Schools
Pedestrian Recommendations
  • 57th Street Crossing
     • Consider Flasher
     • Consider Rectangular Rapid Flashing Beacon

   • Sidewalks (54th Street – Westfield Boulevard)
      • Provide 6-foot sidewalk (west side)
      • Widen existing sidewalk (east side)
      • Separate sidewalk from curb (both sides)
   • Sidewalks (Crossing Streets)
      • Provide 6-foot sidewalks where feasible
      • Give priority to 56th Street (safe routes to school)
Multi-way STOP Control
56th Street and Central Avenue

  All-Way Stop Warrant Evaluation - 56th & Central

                         Major Street Volume            Minor Street Volume

                      Total of Both Approaches Total of Both Approaches

                            (vehicles/hour)                (vehicles/hour)              Meets
                                                                                       Warrant
      Time Period        Actual        Required         Actual        Required            ?

        5-6 pm1            408            300            180             200             No

       8th Hour2           266            300            117             200             No

  1 Volumes for hour from 5 - 6 pm estimated to be 4 times the 5:00 - 5:15 pm volume
  2 8th highest hour estimated to be 65% of the 5 - 6pm volume
Multi-way STOP Control
56th Street and Central Avenue


    • Traffic Volume Warrants not met
    • Stopping Sight Distance Criteria* “borderline”
         • Existing sight distance = 400 feet from north
         • STOP warranted if 390 feet or less



     *Sight distance criteria from Indiana Design Manual,
     Indiana Department of Transportation
Traffic Signal Progression
38th Street to Kessler Boulevard


    • Potential approach to speed control on Meridian
    • Current progression speed = 40 mph
    • Scenarios investigated: 30 mph, 35 mph, 40 mph
    • Time-space diagrams provided through DPW
    • Additional signal at 43rd suggested to reinforce
      progressive speeds between 38th and 46th
40 MPH / AM
40 MPH / PM
40 MPH / Off Peak
30 MPH / AM
30 MPH / PM
30 MPH / Off Peak
35 MPH / AM
35 MPH / PM
35 MPH / Off Peak
Meridian Street Signal Progression
                  SOUTHBOUND

Speed   % Green Band on Meridian       *Stops         Time
(mph) AM Peak   PM Peak   Off Peak                  Stopped

 30     40%      27%*      33%*      1 (PM Peak)    55-85 sec
                                     1 (Off Peak)   8-36 sec

 35     46%      22%*       24%      1 (PM Peak)    8-40 sec



 40     46%      31%*       19%      1 (PM Peak)    25-60 sec
Meridian Street Signal Progression
                  NORTHBOUND

Speed   % Green Band on Meridian       *Stops        Time
(mph) AM Peak   PM Peak   Off Peak                 Stopped

 30     18%*      44%       22%      2 (AM Peak)   60-90 sec
                                                    (each)

 35     21%       44%       26%



 40     15%*      44%       30%      1 (AM Peak)   1-40 sec
Major Conclusions
  • Retime signal system for 35 mph throughout
  • Install traffic signal at Meridian & 54th
  • Consider traffic signal at Meridian & 43rd
  • DPW agreed to 4-way STOP at 54th & Central
  • Install sidewalks on Meridian north of 54th
  • Install sidewalks on cross streets (especially 56th)
  • Install motorist information speed signs

								
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