Evaluation of Mitigation for Increasing Efficiency of Toll Plaza: A Case Study of Asoke 3 and Asoke 4 Toll Plaza

Abstract

Expressway traffic demand tends to be rapidly increased especially during morning and evening rush hour. The main solution is to reduce traffic congestion, especially in front of toll plaza, in order to improve toll plaza capacity. These can be done by developing existing electronic toll collection system (ETC) into electronic toll collection system without barrier (Nonstop lane; NSL) and increasing the number of toll collection staff in front of toll booth for manual toll collection system (MTC). However, it is necessary to know the proper number that should be added in order to apply such method. Therefore, this study evaluates the efficiency of Asoke 3 and Asoke 4 toll plaza. The microscopic simulation model of AIMSUN had been developed to analyze traffic evaluation and efficiency of various scenarios. The results indicated that adding 10 toll collection staff per toll booth accompanied with nonstop lane can be applied for Asoke 3 toll plaza during evening rush hour, as it improves toll plaza flow by 0.52%. While adding 5 toll collection staff per toll booth accompanied with nonstop lane can be applied for Asoke 4 toll plaza during morning rush hour, as it improves toll plaza flow by 12.73%. Afterward, these measures were applied. It was found that the efficiency of toll plaza is increased on the condition that toll plaza has heavy traffic volume.