It is well known that signal-setting policies and traffic assignment mutually influence each other. it is not always certain that anequilibrium can be established between both. with the two most commonly used policies, webster's and a delay-minimizing one, there may be many such equilibria, some of them unstable. a third policy, p sub 0, has been designed to have substantially better equilibrium behavior. the characteristics of these three policies are discussed as far as their influence on assignment is concerned. an empirical comparison of the behavior of webster's policy and that of p sub 0, especially with regard to stability and delays, is presented for a small network. the results for the p sub 0-policy appear to be promising. this paper appeared in transportation research record no. 1142, urban signal systems and transportation system management. for covering abstract see irrd no 817708. It is well known that signal-setting policies and traffic assignment mutually influence each other. it is not always certain that anequilibrium can be established between both. with the two most commonly used policies, webster's and a delay-minimizing one, there may be many such equilibria, some of them unstable. a third policy, p sub 0, has been designed to have substantially better equilibrium behavior. the characteristics of these three policies are discussed as far as their influence on assignment is concerned. an empirical comparison of the behavior of webster's policy and that of p sub 0, especially with regard to stability and delays, is presented for a small network. the results for the p sub 0-policy appear to be promising. this paper appeared in transportation research record no. 1142, urban signal systems and transportation system management. for covering abstract see irrd no 817708.
Abstract