The I-15 Commuter Rail Feasibility Study evaluated the potential of conventional commuter rail services between two corridors: Temecula North and Temecula South. Apart from the evaluation of conventional commuter rail options, this study also explored the potential of implementing a commuter rail level of service on the proposed California High-Speed Rail (HSR) system between Temecula and San Diego.
Corridors evaluated included:
The evaluation of commuter rail options required the development of forecasts for ridership, revenue and costs, as well as assessment of potential mobility improvements and institutional issues. The planning year for the study was 2030.
This analysis utilized the same evaluation criteria developed for the 2005 RCTC commuter rail study. Feasibility was determined by examining ridership in 2030, passenger trips per train, fare box recovery ratio, right-of-way issues, daily trip time savings, access to low income households, operating cost per passenger-mile, total capital costs and capital costs per passenger.
Top four ranking alternatives:
Alternative G, with commuter rail service from Temecula to San Diego, does the best in terms of passenger trips, passenger trips per train, fare box recovery, access from low income households, and operating costs per passenger-mile. However, its implementation cost of $1 billion is three times that of the next highest, Alternative A.
The analysis supports public-private partnerships, where private developers help fund or donate right of way and contribute to the overall capital costs. This concept could reduce implementation costs for Alterative C1 by $113.2 million—assuming that developers provide or fund the right-of-way requirements, the stations, and contribute $50 million in rolling stock requirements. This approach would make the service more cost efficient and could increase the viability of the project.
High-Speed Rail, if implemented, would need to address the major commuter demand from Temecula with commuter focused schedules going south.