Estimating the Benefits of Korea’s Intercity Rail Speed Increase Project: An Agent-Based Model Approach

In the cost–benefit analysis of urban transportation investment, a logsum-based benefit calculation is widely used. However, it rarely applied to inter-regional transportation. this study, we approach benefits for high-speed projects railways in Korea’s long-term plan. Moreover, behavioral model which an agent travels beyond zones assumed by aggregate model. case South Korea, such important determining priorities: whether specialize mobility improvement investing railway project, as 300 km/h Korea Train eXpress (KTX), or improve existing facilities, building relatively slower railroad (150–250 km/h) enhance and accessibility. context, if new, slow were constructed adjacent railroad, would be negligible since reduction travel time not sufficiently reflect accessibility improvements. Therefore, study proposes use agent-based models evaluate intercity service conduct with proposed new methodology. A logsum was selected account passenger cars on semi-high-speed railroads simultaneously has been used estimate modes modes. To calculate logsum, input data from both individual models, found that feasibility investment possible. can also analysis. The methods are expected enable more comprehensive evaluation transport system. model, suggested further studies undertake detailed scenario estimation.