A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
TRANSYT traffic engineering program efficiency improvement via Fibonacci search
Abstract TRANSYT is a widely-used traffic model developed in Great Britain. Its purpose is to study the traffic behavior of, and to optimize the signal timings of, a network of coordinated signalized intersections. An important subroutine of TRANSYT is an iterative minimization search procedure based on the so-called “hill climbing” strategy. It attempts to minimize a performance index (a weighted combination of stops and delay) by varying the phase lengths and offsets of each signal. The purpose of this paper is to explain how another search procedure, a modification of Fibonacci search, can be used in place of the hill climbing procedure. This results in a significant improvement in TRANSYT, both in terms of the performance index and computational time.
TRANSYT traffic engineering program efficiency improvement via Fibonacci search
Abstract TRANSYT is a widely-used traffic model developed in Great Britain. Its purpose is to study the traffic behavior of, and to optimize the signal timings of, a network of coordinated signalized intersections. An important subroutine of TRANSYT is an iterative minimization search procedure based on the so-called “hill climbing” strategy. It attempts to minimize a performance index (a weighted combination of stops and delay) by varying the phase lengths and offsets of each signal. The purpose of this paper is to explain how another search procedure, a modification of Fibonacci search, can be used in place of the hill climbing procedure. This results in a significant improvement in TRANSYT, both in terms of the performance index and computational time.
TRANSYT traffic engineering program efficiency improvement via Fibonacci search
Foulds, L.R. (author)
Transportation Research Part A: General ; 20 ; 331-335
1985-10-05
5 pages
Article (Journal)
Electronic Resource
English
Initial Evaluations of New TRANSYT-7F Version 8.1 Program
| British Library Online Contents | 1999
Sheared delay formulae for the TRANSYT traffic model: a review and calibration
| Online Contents | 2003
Procedures for Calibrating TRANSYT Platoon Dispersion Model
| Online Contents | 2006
Sheared delay formulae for the TRANSYT traffic model: A review and calibration
| Taylor & Francis Verlag | 2003
Signal Timing Optimization for Oversaturated Networks Using TRANSYT-7F
| British Library Online Contents | 1999