01551728

Component

https://doi.org/10.3141/2534-06

Suburban light rail transit (LRT) and regional rail systems face similar challenges when it comes to upgrade perspectives. A particular planning process is required for upgrade measures apart from conventional alignment modifications. This study investigated the similarities between LRT and regional rail characteristics and developed a robust decision framework that linked demand modeling, timetable construction, and infrastructure design in an integrated approach. The study applied a three-stage planning process for a regional railway system in a midsized Austrian city. A multimodal travel demand model that included demographic changes over the next 2 decades was used. Travel demand was calculated with the current timetable and forecasted changes in regional planning. Within a sensitivity analysis, the impact of alternative timetables on modal shift was checked. A detailed analysis of these results was undertaken to optimize the best-ranked timetable model. Different infrastructure measures such as electrification, double-track sections, road grade crossings, station layout, and alignment changes were identified to match the optimal target timetable with fixed hub-to-hub travel times. Various stakeholders were involved in deciding the political objectives of modal shares, transit headways, and regional rail infrastructure. A well-defined planning process with fixed milestones led to a common agreement on a stepwise upgrade plan for the next 25 years. The proposed method can be applied to regional rail as well as LRT.

01589986

15-1085

English

pp 38–47

2015

Transportation Research Record: Journal of the Transportation Research Board

9780309369398

Print

Figures (2) ; References (50) ; Tables (4)

Light rail transit; Methodology; Modal shift; Modernization; Regional transportation; Transportation planning; Travel demand

Austria

Planning and Forecasting; Public Transportation; Railroads; Terminals and Facilities; I72: Traffic and Transport Planning

TRIS, TRB, ATRI

Dec 30 2014 12:26PM

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