38th Street to Kessler Boulevard

Traffic Engineering Review Summary

For Historic Midtown Initiative (HARMONI)By HNTB Corporation

June, 2010

• 38th Street – 54th Street• 36 feet wide• 35 mph speed limit

Existing Conditions

• 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

Location DirectionSpeed Limit

85th Percentile Speed Range

Off-Peak PM Peak

61st Street NB 45 35-40 --

SB 45 45-50 --

55th Street NB 40 45-50 40-45

SB 40 35-40 40-45

49th Street SB 35 -- 35-40

Source data provided by SKA

Meridian Street Crash Data

IntersectionTotal

AccidentsInjury

AccidentsHighest

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%

39th Street – Westfield Boulevard, 2004 - 2007

54th Street Traffic SignalCondition 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.

PedestriansSafe Route to Schools

• 57th Street Crossing• Consider Flasher• Consider Rectangular Rapid Flashing Beacon

Pedestrian Recommendations

• 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)

56th Street and Central AvenueMulti-way STOP Control

All-Way Stop Warrant Evaluation - 56th & Central

Time Period

Major Street Volume Minor Street Volume

Meets Warrant

?

Total of Both Approaches Total of Both Approaches

(vehicles/hour) (vehicles/hour)

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 volume2 8th highest hour estimated to be 65% of the 5 - 6pm volume

56th Street and Central AvenueMulti-way STOP Control

• 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

38th Street to Kessler BoulevardTraffic Signal Progression

• 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 ProgressionSOUTHBOUND

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 ProgressionNORTHBOUND

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