Northern Washington County Corridor Based Transportation Plan March 2019
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FINAL REPORT- MARCH 2019 Northern Washington County Corridor Based Small Area Transportation Plan .._,..,.,: ...'� .., �r�•:::;. ��·� �·· Prepared for: Submitted by: Southwestern Pennsylvania Commission Michael Baker International, Inc. Michael Baker INTERNATIONAL Northern Washington County Corridor Based Transportation Plan March 2019 Table of Contents 1 PROJECT OVERVIEW ...........................................................................................................................3 1.1 Background & Purpose ...........................................................................................................3 1.2 Study Area .............................................................................................................................3 1.3 Goals and Objectives ..............................................................................................................3 1.4 Study Process and Methodology.............................................................................................4 2 STAKEHOLDER AND PUBLIC INPUT ......................................................................................................5 2.1 Steering Committee Meetings ................................................................................................5 2.2 Public Meetings .....................................................................................................................5 2.3 Summary of Findings ..............................................................................................................5 3 EXISTING AND FUTURE CONDITIONS ..................................................................................................7 3.1 Data Collection ......................................................................................................................7 3.2 Operational Analysis ..............................................................................................................7 3.2.1 Existing Conditions ...............................................................................................................7 3.2.2 Existing Conditions Traffic Capacity Analysis .......................................................................7 3.2.3 Future Conditions .............................................................................................................. 10 3.2.4 2040 Traffic Volumes ......................................................................................................... 10 3.2.5 Future Conditions No Build Traffic Capacity Operational Analysis ................................... 11 3.2.6 Future Conditions Mitigated Traffic Capacity Operational Analysis ................................. 14 3.3 Safety Analysis ..................................................................................................................... 15 3.4 Mobility and Accessibility Analysis ....................................................................................... 17 3.4.1 Additional Park-n-Ride Locations Needed Along I-79 North and South ............................ 17 3.4.2 Connectivity ....................................................................................................................... 18 3.4.3 Transit Facilities ................................................................................................................. 18 3.5 Conceptual Engineering Locations ........................................................................................ 20 3.5.1 Concept Cost Estimates ..................................................................................................... 23 4 RECOMMENDATIONS & CONCLUSION .............................................................................................. 24 4.1 Potential Funding Sources .................................................................................................... 24 4.1.1 Non-Traditional Development Mechanisms ...................................................................... 26 4.2 Conclusion ........................................................................................................................... 27 Page 1 Northern Washington County Corridor Based Transportation Plan March 2019 List of Tables Table 3-1: 2018 Existing Level of Service – No Mitigation .........................................................................................8 Table 3-2: ADT Volumes .......................................................................................................................................... 10 Table 3-3: 2040 Future Level of Service - No Mitigation ......................................................................................... 12 Table 3-4: 2040 Future Level of Service – With Mitigation ..................................................................................... 14 Table 3-5: Locations with the Highest Number of Crashes ..................................................................................... 17 Table 4-1: Funding Programs ................................................................................................................................... 25 List of Figures Figure 2-1: Public and Stakeholder Comments (Map) ...............................................................................................6 Figure 3-1: 2018 Existing Level of Service (Map) ........................................................................................................8 Figure 3-2: 2040 Future Level of Service (Map) ...................................................................................................... 12 Figure 3-4: Intersections and Safety Concerns (Map) ............................................................................................. 16 Figure 3-4: Intersections and Safety Concerns (Map) ............................................................................................. 16 Figure 3-5: Transit Facilities (Map) .......................................................................................................................... 19 Figure 3-6: Conceptual Engineering Locations (Map) ............................................................................................. 20 Figure 3-7: Concept Cost Estimates (Map) .............................................................................................................. 23 List of Appendices APPENDIX A Concept Location Maps APPENDIX B Funding & Cost Estimates APPENDIX C Meeting Summaries APPENDIX D Traffic Volume Diagrams APPENDIX E Level of Service Tables Page 2 Northern Washington County Corridor Based Transportation Plan March 2019 1 PROJECT OVERVIEW 1.1 Background & Purpose Washington County, part of the Southwestern Pennsylvania region, is located southwest of Allegheny County and the City of Pittsburgh, occupying 860 square miles. The north central area of Washington County has experienced some of the fastest traffic growth in the region, creating congestion and mobility issues along key corridors in recent years. These corridors include I-79, US-19, and SR-1009 (Washington Pike/ Morganza Road). Currently, traffic backs up onto I-79 at the Canonsburg and Southpointe exits; many intersections along US 19 and SR 1009 are also experiencing congestion during peak hours. In recent years, the growth of large business park developments, such as Southpointe I and II, along with substantial infill development of new single family residential, commercial, and industrial developments, are placing stress upon the existing transportation system. In addition, the anticipated completion of the Pennsylvania Turnpike Commission’s Southern Beltway project to I-79 and Morganza Road could bring even more traffic to the already congested arterials and connector roadways in the area. Based on forecasted growth, traffic in the study area is projected to increase 30% over the next 20 years. This trend is expected to continue as large parcels of infill development continue to be developed in the I-79/US 19 Corridor Targeted Area of Investment (Wash. Co. Comprehensive Plan 2005). The purpose of this study was to evaluate the study corridors and intersections within the study area to identify short, medium, and long-term multimodal improvements that satisfy the goals and objectives of the Study. Building on previous planning work done in the area, Southwestern Pennsylvania Commission (SPC) and its technical consultant team evaluated selected corridors and intersections to identify near-, short-, medium-, and long-term improvements to alleviate congestion in Northern Washington County. The team included Michael Baker International, Lochner Engineering, Moore Design Associates, along with a steering committee comprised of local municipalities, Washington County, and PennDOT. 1.2 Study Area This corridor-based, small area transportation plan services the area of north central Washington County, in the Townships of Cecil, Chartiers, Mount Pleasant, North Strabane and Peters as well as Canonsburg and Houston Boroughs. The study analyzes traffic flow characteristics, operations, safety, mobility and accessibility, as well as existing and future deficiencies within the study area. This area is identified in the Washington County Comprehensive plan as the I- 79/US 19 Corridor Targeted Area for Investment transitioning into the Rural Recourse Area. 1.3 Goals and Objectives The Northern Washington County Transportation Study examines existing and future transportation conditions to provide short-term,