This study tries to develop a Korea highway safety evaluation proto type model for quantified safety evaluation. We develop a base model and crash modification factors (CMFs) through reviewing the procedures and methodologies in <italic>Highway Safety Manual</italic>. At the same time, we try to carefully...

In this paper we propose a stepwise genetic algorithms approach for optimizing highway alignments for improving computational efficiency and quality of solutions. Our previous work in highway alignment optimization has demonstrated that computational burden is a significant issue when working...

This paper analyses the impacts of highway development with different financing strategies. We examine two ways in which the government can finance highway development projects: it can (a) use current tax system, or (b) impose earmarked taxes. Our model is composed of a transport network model...

We propose a novel model for dispatching trucks given the constraints and sources of uncertainty that arise in drayage operations. The proposed model is designed to minimize the expected cost and is generally applicable to cases including different distributions of random parameters. Numerical...

Conventional bus services, which have fixed routes and fixed service schedules, and flexible bus services, which provide doorstep services, have different advantages and disadvantages, with conventional services being generally preferable at high demand densities and flexible services being...

A numerical method has been developed for estimating delays on congested waterways. Analytic and numerical results are presented for series of G/G/1 queues, i.e. with generally distributed arrivals and service times and single chambers at each lock. One or two-way traffic operations are...

We present here a new heuristic for the static multi-vehicle Dial-A-Ride Problem, which we call a rejected-reinsertion heuristic. Its main objective is to minimize the number of vehicles used to satisfy all the demand, subject to service quality constraints. Passenger deviation from desired time...

Highway alignment optimization based on cost minimization requires comprehensive formulation of costs sensitive to alignment and development of efficient solution algorithms. The complexity of the applicable cost functions severely limits the search algorithms that can be employed. Recently,...