The Urban Travel Demand Forecasting Project Final Report Series, Volume X. Policy Analysis of a Transportation Corridor

摘要

The Urban Transportation Corridor Policy Analysis is one of the three practical applications of disaggregate travel demand models conducted as part of the Urban Travel Demand Forecasting Project. The policy study found that disaggregate travel demand models together with a synthesized sample of households are a very convenient and cost-effective way to predict demand for travel and for analyzing the consequences of alternative plans by market segments. Parametric transportation service models can be utilized together with the disaggregate travel demand models, and equilibrium of demand and service can be accomplished at low costs. The computational procedure employed in the study was that of approximating fixed points of a mapping. The costs of alternative transportation modes are a very complex problem for analysis. The analyses and calculations made show that substantial subsidies and cross-subsidies are made to and within the passenger transportation industry. The policy analysis of alternative plans in the I-580 corridor showed that a designated lane for high occupancy vehicles (HOV) improves the linehaul speeds in most cases even when it means reducing the capacity for single occupant cars. HOV lanes and express bus service were found to confer benefits mostly to the well-to-do suburbanites.