Abstract
This paper, at first, describes about a theoretical analysis for the capacity of toll plaza with both ETC and non-ETC tollgates. The analysis described bere considers not only the number and the type (“ETC only”, “non-ETC only” or “both together”) of tollgates but also the stock space bofore tollgates and the penetration of ETC equipment on vehicles. In case of the toll plaza with “non-ETC only” and “both together” tollgates, this analysis concludes that the improvement of capacity does not depend on any combination of tollgates but on the penetration rate of ETC equipment. This analysis also tells that the capacity of the toll plaza with “ETC only” and “non-ETC only” tollgates will be worse than the one of all “non-ETC only” tollgates in case of heavy traffic but low ETC penetration rate. In the last part, a simulation model to evaluate ETC toll plaza is developed and verified by comparing with the theoretical analysis.
