Citation

Messer CJ, Dudek CL, Friebele JD. Highw. Res. Rec. 1973; 461: 1-16.

Copyright

(Copyright © 1973, National Research Council (U.S.A.), Highway Research Board)

DOI

unavailable

PMID

unavailable

Abstract

This paper presents the development of a method for predicting the travel time required by a metorist to travel from any selected freeway location to the end of the freeway system during incident conditions. It is predictive in that it computes an estimate of a motorist's travel time if he were to enter the freeway several minutes in the future. Speeds, volumes, and other operational measures can be predicted also. These calculations are made immediately after the incident is detected and the necessary operational measures have been evaluated. Speeds of the various shock waves and travel-time results are also presented. The model was developed following the kinematic wave theory of lighthill and whitham for possible use in an operational control strategy of variable-message signs whereby motorists would be diverted to alternate routes if conditions on the freeway relative to selected alternate routes justified the diversion. The model could also be used to predict queue backups and delays due to lane closures caused by scheduled maintenance operations. /author/

record url:
Http://onlinepubs.Trb.Org/onlinepubs/hrr/1973/461/461-001.pdf

Language: en

Keywords

MATHEMATICAL MODELS; TRAFFIC SURVEYS; TRANSPORTATION; HIGHWAY ENGINEERING; KINEMATICS