Windowed Transportation Planning Model

Windowed Transportation Planning Model

D. M. Levinson, Institute of Transportation Studies, University of California at Berkeley, Berkeley, Calif. 94720. Y. Huang, Transportation Planning Division, Maryland National Capital Park and Planning Commission, 8787 Georgia Avenue, Silver Spring, Md. 20910. A transportation planning model that integrates regional and local-area forecasting approaches is developed and applied. Although regio...

Evolutionary Transportation Planning Model: Structure and Application

An evolutionary transportation planning model wherein the demand in a given year depends on the demand of the previous year is described. The model redistributes a fraction of the work trips each year associated with the relocation of a household or taking a new job, whereas changes in distribution associated with growth (or decline) are considered. This hybrid-evolutionary model is compared wi...

Truth in Transportation Planning

Transportation engineers and urban planners often report uncertain estimates as precise numbers, and unwarranted trust in the accuracy of these precise numbers can lead to bad transportation and landuse policies. This paper presents data on parking and trip generation rates to illustrate the misuse of precise numbers to report statistically insignificant estimates. Beyond the problem of statist...

Transportation Planning and Modeling

Evolutionary Freight Transportation Planning

In this paper, we present the freight transportation planning component of the INWEST project. This system utilizes an evolutionary algorithm with intelligent search operations in order to achieve a high utilization of resources and a minimization of the distance travelled by freight carriers in real-world scenarios. We test our planner rigorously with real-world data and obtain substantial imp...