North Philadelphia TOD Ridership Study

2012 ITE Annual ConferenceAllen Nie, PhD, PE, HMMJune 24 -27, Santa Barbara, CASR 46 Improvement PSR/PDS Study

Project Study Report (Project Development Support) [PSR(PDS)]

The PSR(PDS) is a project initiation document which is used to program the project development support for State Transportation Improvement Program (STIP) candidates. The PSR(PDS) describes the transportation problem, identifies the scope of the viable alternatives, and provides an estimate of the project development support resources required for the specific project. Support resources may be programmed in the following sequential components: (1) Project Approval/Environmental Document (PA/ED); (2) Plans, Specifications and Estimate; (3) Acquisition of Right of Way; and (4) Construction Management and Engineering

The PSR(PDS) is a statewide programming document. The PSR(PDS) identifies thetransportation problem and the alternatives that will be studied in order to make adecision on an appropriate solution. Because it is used as a decision-making document itmust identify the key issues of the transportation problem, any major issues that shouldbe investigated and the effort and resources that are needed to complete the studies andproject approval process. It is designed so that the important information can be easilyobtained from the PSR(PDS) text. 0Presentation OutlineBackgroundImprovement AlternativesTraffic ModelingTraffic Operations AnalysisProject StatusLessons Learned

Project Location Paso Robles

CambriaWascoPass of the Oaks30K Pop, 11% of SLO, 44K in 202519% retail sales of SLO53% manufacturing jobs A gross product of 2 billion in 2008

Highway 46 fact sheet - Major interregional road connecting Central Coast with SJ Valley - Accommodates inter-regional, regional, rural, and urban traffic - Start from SR 1 in SLO and end at SR 99 in the Central Valley - In SLO, Hwy 46 E is divided by US 101, Hwy 46 E, and Hwy 46 W

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SR 46 E in Paso Robles

Within Paso, Hwy 46 is east-west, four lane highway. Two signalized intersections and two unsigalized CCS = 4.9 miles long

City of Paso Robles fact sheet3Past StudiesSR 46 E Comprehensive Traffic Survey, 2005Golden Hill Retail Center TIA, 2007State Route 46 E Parallel Routes Study, 2008SR 46 E Comprehensive Corridor Study, 2009Paso Robles General Plan Update, 2011

Existing Intersection & Mainline LOS

2025 Intersection & Mainline LOS

Delays

Source: Caltrans SR 46 E CCSHwy 46 7Paso Robles Land Use

8Traffic Issues Local Perspective

S

AccessibilityConnectivity

9Improvements along SR 46LocationImprovementStatusUS 101/SR 46 SB RampsAdd WBL and EBT lanesIn construction, to be completed in 2014US 101 / SR 46 NB RampsAdd WBT lanesTo be completed by CT in the futureSR 46 / Golden Hill RdRestriping, add left turn lanes on all approaches; widen northbound approach to CompletedSR 46 E / Airport RdWiden SR 46 to 4 lanes from Airport Rd to ShandonCompletedSR 46 / Union RdTBD by this studyPSRThe PSR Project Team

StakeholdersTasks11Alignment AlternativesALT 1 Two-way Stop-controlled (No Build)ALT 2 SignalizationALT 3 Roundabout (West)ALT 4 Roundabout (East)ALT 5 OvercrossingALT 6 InterchangeALT 4 Roundabout (East)

ALT 6 Interchange

Caltrans Responsibility Maintain / Increase Hwy 46 throughput Reduce travel delayTraffic controls (signal)Congestion (queue spillovers, weaving issues, etc)Improve travel time reliabilityMultimodal and safetyVision - grade separation, limited # of access points

15Citys ExpectationEasy access to Highway 46 and US 101Better & reliable connectivitySupport multimodal transportation (bike & Ped)Fit into the Citys Circulation Master PlanCost concerns Phased development Citys Circulation Master Plan

17Work ProcessKickoff MeetingTraffic ModelingOperational AnalysisAlternative AssessmentProject Management and QA/QCTraffic DataField SurveyAlternative Development18City of Paso Robles Traffic ModelCity model based on the SLOCOG county modelThree-step highway modelFeedback loopDetailed GIS roadway networkHorizon years modeled20082030

Traffic Model Enhancement

Post-processing

Model Enhancement

21Day of Week Fluctuation

Highway 46Vs. Local ArterialTraffic Model Calibration

ComparisonCoefficient (slope)R^2InterceptBefore CalibrationAM Peak1.160.8465PM Peak1.340.8986After CalibrationAM Peak0.990.993PM Peak0.990.993Comparison% (GEH