Computing travel plans for desired trips in public transportation systems is not exactly the same as finding a shortest driving path in a given area. Path planning in the context of public transportation systems must consider the route constraint that public vehicles serve on particular paths and that passengers cannot order the drivers to change the bus routes. Explicit representation of the r...

In an urban area the determination of transportation routes should be planned so as to minimize the provoked pollution taking into account the cost of such routes. In the sequel these routes are cited as pollution routes. The transportation network is expressed by a weighted graph ( ) , , , G V E D P = where every vertex represents a location to be served and E contains unordered pairs (edges) ...

This paper deals with business processes and productivity improvement in order to reduce costs of any kind, especially by eliminating of the wastes. Therefore, automation of logistic processes is very important, and in this case is the source of reducing one of the biggest wastes of all: inner transportation. There are several models of routes selecting in practice and, the main focus of this p...

One of the most important problems for distribution companies is to find the best locations for depots and to find proper routes for transportation vehicles and to optimize supply network. This study intends to develop a model for the problem of location-routing in post offices. So, a new Bi-Objective Location-Routing Problem for Locating Town Post Office and Routing Parcels is defined. This pr...

The purpose of this paper is to present a coalition based multi-agent model for the Vehicle Routing Problem with Time Windows, which is one of the most important ones in distribution and transportation. The VRPTW objective is to design least cost routes from one depot to a set of customers. A fleet of homogeneous vehicles performs the routes to serve all the customers, while respecting capacity...

Understanding the quality and usage of public transportation resources is important for schedule optimization and resource allocation. Ridership and adherence are two main dimensions for evaluating the quality of service [1, 5]. Using Automatic Vehicle Location (AVL), Automatic Passenger Count (APC), and Global Positioning System (GPS) data, ridership data and adherence data of public transport...

Highway relief routes around smallor medium-size communities are an important element of the Texas Trunk System. These routes provide for the safe and efficient movement of through traffic and contribute to the growth of the Texas economy. For smalland medium-size communities, however, highway relief routes potentially bring both positive and negative impacts by reducing the flow of traffic thr...

Recent years, spatial data and observed data, such as digital road map, traffic route, vehicle speed, recordings events and others, are integrated and stored into the spatial temporal database systems. Various location-based services by using mobile phone are also becoming popular. In this paper, we focus on one of GIS-based scheduling applications concerning the availability of GPS technologie...