Work Zone Optimization for Two-Lane Highway Maintenance Projects

Chun-Hung Chen; Paul Schonfeld

doi:10.3141/1877-11

Work Zone Optimization for Two-Lane Highway Maintenance Projects

Transportation Research Record Journal of the Transportation Research Board ◽

10.3141/1877-11 ◽

2004 ◽

Vol 1877 (1) ◽

pp. 95-105 ◽

Cited By ~ 3

Author(s):

Chun-Hung Chen ◽

Paul Schonfeld

Keyword(s):

Work Zone ◽

Highway Maintenance

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Research on Characteristics and Trends of Traffic Flow Based on Mixed Velocity Method and Background Difference Method

Mathematical Problems in Engineering ◽

10.1155/2020/8546479 ◽

2020 ◽

Vol 2020 ◽

pp. 1-9

Author(s):

Huimin Ge ◽

Hui Sun ◽

Ying Lu

Keyword(s):

Traffic Flow ◽

Transition Zone ◽

Difference Method ◽

Work Zone ◽

Highway Maintenance ◽

Working Zone ◽

End Point ◽

Starting Point ◽

Maintenance Work ◽

Background Difference

This research is conducted on the characters and trends of traffic flow in highway maintenance work areas under typical maintenance work forms. In order to improve the safety of the highway maintenance work area, a data monitoring method based on the combination of mixed speed measurement and background difference method were developed. During the on-site detection, the starting point of the warning zone, the starting point of the upstream transition zone, the starting point of the working zone, the midpoint of the working zone, and the six speed measurement sections of the working zone were collected at the end point and the end zone. In the video detection, the background subtraction was used, and the morphological denoting method and the connected domain analysis method were used to retain the vehicle foreground. After analyzing the connection domain and removing the wrong target, the vehicle target area is extracted from research. The research finally obtained the traffic flow characteristics of the start point of the warning zone, the start point of the upstream transition zone, the start point of the work zone, the midpoint of the work zone, the end point of the work zone, and the end point of the downstream transition zone. The study also obtained the traffic volume and the change trend of headway. The combination of mixed velocity method and background difference method is helpful for data monitoring in typical highway maintenance work areas. The measured data results are helpful for studying the distribution characteristics and trends of traffic flow in typical highway maintenance work areas.

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A Genetic Algorithm for the Optimization Problem of Highway Maintenance Equipment Arrangement

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.220-223.2346 ◽

2012 ◽

Vol 220-223 ◽

pp. 2346-2351

Author(s):

Xiao Feng Zhao ◽

Xue Wen Wang ◽

Yan Hong Zhang ◽

Li Yan Jiao

Keyword(s):

Genetic Algorithm ◽

Optimization Problem ◽

Work Zone ◽

Highway Maintenance ◽

Service Capacity ◽

Improved Genetic Algorithm ◽

Complex Optimization ◽

Traditional Work ◽

Equipment Utilization

Highway maintenance equipment arrangement is a complex optimization problem. To solve this problem, a new “maintenance equipment service capacity (MESC)” index is introduced to evaluate the maintenance equipment service range. And an improved genetic algorithm based maintenance equipment arrangement method is put forward. Using this method, maintenance equipment can breakthrough the traditional work zone limit and the service range of maintenance equipment can be improved to the greatest extent. Practical experiments proved that the method in this paper can effectively reduce the redundant rate and improve equipment utilization of maintenance equipment arrangement.

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