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Support Graphics forTraffic and Circulation Princeton Junction Redevelopment Area

Township of West Windsor

September 8, 2008

Urbitran | DMJM Harris

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ENG-WONG, TAUBTRAFFIC ASSESSMENT REPORT

It is important to note that the results of this “pre-conceptual” analysis are based on …. Preliminary assumptions and would likely change based on changes in background regional traffic volumes associated with revisions to the NJDOT Penns Neck model (i.e., with the Vaughn Drive Connector included as a stand-alone improvement without any of the US-1 upgradws previously identified in the Penns Neck EIS).

Principal objectives– Confirm findings of my initial “sketch” analysis (3/31/08)

– More specific traffic data to guide sizing and layout of streets and intersections

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2030 No-BuildLevels of Service

LOS A-D

LOS E

LOS F

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2030 No-Build Assessment

This analysis indicates that at each of the three signalized intersections in the Study Area, traffic volumes will exceed capacity even with no further development action within the redevelopment area and if no further mitigation is applied. In considering alternatives for the Route 571 improvement, the Township clearly articulated its objective to limit roadway widening, even if congestion were to result. The findings of this analysis are consistent with that position.

- 3/31/08 memo re. Hillier- 9/08/08 memo re. InterCap

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2030 BuildLevels of Service

ImprovementsAssumed

LOS A-D

LOS E

LOS F

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On-SiteTraffic Volumes

2415

650

1170

680

1010

950

1480 Highest hourly2-directionalvolume

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INTERCAP REDEVELOPMENT PLAN REVIEW

Traffic Access (1-7)

West-Side Circulation (8-13)

East-Side Circulation (14)

Main Street (Route 571 Area) (15-17)

Parking (18-21)

Pedestrians and Bicycles (22-24)

Finance (25-29)

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Traffic Access:(1) 2 intersections needed on Alexander

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Traffic Access:(2) Old Bear Brook Road and on-site linkage

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Traffic Access:(3) Further improvements needed at Alexander / Vaughn

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Traffic Access:(4) 4 lanes needed on Vaughn Drive: Remove Parking

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Traffic Access:(5) Eliminate grade separations, 2 at-grade intersections

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Traffic Access:(6) Extend Vaughn Drive or Road B to Sarnoff Connector (Vaughn Drive preferable)

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Traffic Access:(7) NJDOT evaluating implications of changing Penns Neck EIS Record of Decision plan

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West Side Circulation:(8) Core Area: More detail needed, accomodation for drop-offs / pickups, BRT, etc.

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West Side Circulation:(9) Core Area: A plan can be worked out

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West Side Circulation:(10) Core Area: Additional pedestrian tunnel

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West Side Circulation:(11) “X” arrangement for primary streets Primary intersection at crossing

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West Side Circulation:(12) Seek appropriate volume and mix on Road B in town center

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West Side Circulation:(13) Reexamine use of Vaughn Drive and BRT line

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East Side Circulation:(14) Expand drop-off / pick-up area

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Main Street (Route 571) Area:(15) Consistency with adopted concept

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Main Street (Route 571) Area:(16) Wallace Road realignment

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Main Street (Route 571) Area:(17) Acme site access

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Parking:(18) Parking space supply

Existing Commuters(3,500 spaces)

New Commuters(2,500 spaces)

Site Uses(5,650 spaces)

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Parking:

(19) BRT impact on parking demand 1000-1200 space reduction in demand

(20) Accounting for shared parking in new non-commuter space calculations

(21) Garage layouts, sizes, access, general arrangement

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Pedestrians and Bicycles:(23) Pedestrian plan and links to Township System

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Pedestrians and Bicycles:(24) Pedestrian bridge at Route 571 / Amtrack

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Pedestrians and Bicycles:(25) Add pedestrian links, fill gaps

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Finance:

(25) Infrastructure financing not analyzed by me (26) Basis of initial cost estimate not presented

(27) Cost reductions being investigated- Eliminate grade separations- Effect on Penns Neck EIS being evaluated- Added cost items probable

(28) Vaughn Drive on Township Roadway Assessment program

(29) State funding implies need for flexibility in layout, phasing, financing