MAXBAND Version 3.1: Heuristic and optimal approach for setting the left turn phase sequences in signalized networks
- Oak Ridge Inst. of Science and Education, TN (United States)
- Oak Ridge National Lab., TN (United States)
The main objective of synchronized signal timing is to keep traffic moving along arterials in platoons throughout the signal system by proper setting of left turn phase sequence at signals along the arterials/networks. The synchronization of traffic signals located along the urban/suburban arterials in metropolitan areas is perhaps one of the most cost-effective methods for improving traffic flow along these streets. MAXBAND Version 2.1 (formerly known as MAXBAND-86), a progression-based optimization model, is used for generating signal timing plan for urban networks. This model formulates the problem as a mixed integer linear program and uses Land and Powell branch and bound search to arrive at the optimal solution. The computation time of MAXBAND Version 2.1 tends to be excessive for realistic multiarterial network problems due to the exhaustive nature of the branch and bound search technique. Furthermore, the Land and Powell branch and bound code is known to be numerically unstable, which results in suboptimal solutions for network problems with a range on the cycle time variable. This report presents the development of a new version of MAXBAND called MAXBAND Version 3.1. This new version has a fast heuristic algorithm and a fast optimal algorithm for generating signal timing plan for arterials and networks. MAXBAND 3.1 can generate optimal/near-optimal solutions in fraction of the time needed to compute the optimal solution by Version 2.1. The heuristic algorithm in the new model is based on restricted search using branch and bound technique. The algorithm for generating the optimal solution is faster and more efficient than version 2.1 algorithm. Furthermore, the new version is numerically stable. The efficiency of the new model is demonstrated by numerical results for a set of test problems.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- Department of Transportation, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 34378
- Report Number(s):
- ORNL/TM--12869; ON: DE95008655
- Country of Publication:
- United States
- Language:
- English
Similar Records
A restricted branch and bound approach for setting the left turn phase sequences in signalized networks
Optimization of left-turn phase sequence in signalized networks using MASBAND 86. Volume 1. Summary report. Final report, August 1984-January 1986
Optimization of left-turn phase sequence in signalized networks using MAXBAND 86. Volume 2. User's manual. Final report, August 1984-January 1986
Conference
·
Fri Jul 01 00:00:00 EDT 1994
·
OSTI ID:83862
Optimization of left-turn phase sequence in signalized networks using MASBAND 86. Volume 1. Summary report. Final report, August 1984-January 1986
Technical Report
·
Sat Aug 01 00:00:00 EDT 1987
·
OSTI ID:6043194
Optimization of left-turn phase sequence in signalized networks using MAXBAND 86. Volume 2. User's manual. Final report, August 1984-January 1986
Technical Report
·
Sat Aug 01 00:00:00 EDT 1987
·
OSTI ID:5832713