Evolution of the TRANSYT model in a developing country

TRANSYT has been used in Chile since the early 1980s for cost-benefit analysis of infrastructure and traffic management projects. It is also the main tool of the Area Traffic Control Unit of Santiago de Chile since mid 1990s. As a result of this experience, many methodological improvements to the model have been done in order to take into account local conditions. This paper presents a review of these methodological as well as practical advances on the TRANSYT model made in the Chilean context during the past 15 years. Issues considered are cruise time distributions, the cycle-time selection method, saturation flows and car equivalents, public transport modeling, peak-hour delay calculation, modeling unsignalized intersections and zebra crossings, and fuel-consumption estimation.

[1]  D I Robertson,et al.  TRANSYT: A TRAFFIC NETWORK STUDY TOOL , 1969 .

[2]  N. Rouphail,et al.  Estimation of delays at traffic signals for variable demand conditions , 1993 .

[3]  R Akcelik,et al.  TRAFFIC SIGNALS: CAPACITY AND TIMING ANALYSIS , 1981 .

[4]  D. L. Gerlough,et al.  Traffic flow theory : a monograph , 1975 .

[5]  Henk J van Zuylen,et al.  The estimation of saturation flow, effective green time and passenger car equivalents at traffic signals by multiple linear regression , 1978 .

[6]  D. Branston.  SOME FACTORS AFFECTING THE CAPACITY OF SIGNALISED INTERSECTIONS , 1979 .

[7]  D I Robertson,et al.  User guide to TRANSYT version 6 , 1976 .

[8]  M Tracz.  THE PREDICTION OF PLATOON DISPERSION BASED ON RECTANGULAR DISTRIBUTION OF JOURNEY TIME , 1975 .

[9]  Dennis Robertson.  The TRANSYT method of co-ordinating traffic signals , 1997 .

[10]  Sam Yagar,et al.  REPRESENTING STOCHASTIC TRANSIT DWELL TIMES IN TRAFFIC SIGNAL OPTIMIZATION , 1990 .

[11]  Mike McDonald,et al.  Passenger car units in saturation flows: Concept, definition, derivation , 1985 .

[12]  David Lopez,et al.  A state of the art report , 1979 .

[13]  R M Kimber,et al.  THE TRAFFIC CAPACITY OF MAJOR/MINOR PRIORITY JUNCTIONS , 1980 .

[14]  L E Keefer,et al.  Transportation and traffic engineering handbook , 1976 .

[15]  R D Bretherton,et al.  SCOOT-a Traffic Responsive Method of Coordinating Signals , 1981 .

[16]  Philip A. Seddon,et al.  THE PREDICTION OF PLATOON DISPERSION IN THE COMBINATION METHODS OF LINKING TRAFFIC SIGNALS , 1972 .

[17]  R Akcelik,et al.  GUIDE TO FUEL CONSUMPTION ANALYSES FOR URBAN TRAFFIC MANAGEMENT , 1984 .

[18]  J Gibson,et al.  BUS-STOPS, CONGESTION AND CONGESTED BUS-STOPS , 1989 .

[19]  Rodrigo Fernandez,et al.  On the capacity of bus transit systems , 2002 .