Surveyor is a mobile highway data collection system designed to collect measurement data about objects, features, structures, and landmarks located along highways and roadways, for highway planning, managing, and maintenance. It creates classified inventories annotated with object dimensions, object position relative to the road, and global position reference. The mobile data collection part of...

In order to solve the problems of large energy consumption existing in tunnel lighting control system, an automatic control system of tunnel lighting is designed based on stepless control method. The tunnel lighting control model is established based on “Specifications for Design of Ventilation and Lighting of Highway Tunnel (China)”. Simulation of tunnel lighting control based on the establish...

Traffic congestion in the largest cities of the world is a growing problem that has to be taken into account seriously, not only by governments, but also by the private sector. After an extensive survey in the field of Intelligent Vehicle / Highway System (IVHS), different alternatives are analyzed to solve this dilemma and the concept of Intelligent Vehicle / Highway System is proposed as the ...

In this paper, we propose a new approach, called RoadGuard, for Highway Control and Management System. RoadGuard is based on counting and tracking moving vehicles robustly. Our system copes with some challenges related to such application processing steps like shadow, ghost and occlusion. A new algorithm is proposed to detect and remove cast shadow. The occlusion and ghost problems are resolved...

T his paper evaluates the entrance capacity and queueing delay for Automated Highway Systems through use of simulations and analytical modeling. Queueing statistics are also used to determine the sustainable capacity of alternative concepts, taking trip length distribution and spacing between ramps into consideration. Based on safety-spacing head­ ways (produced in a separate analysis), the mos...

There are several ways that can be implemented in a vehicle tracking system such as recognizing a vehicle color, a shape or a vehicle plate itself. In this paper, we will concentrate ourselves on recognizing a vehicle on a highway through vehicle plate recognition. Generally, recognizing a vehicle plate for a toll-gate system or parking system is easier than recognizing a car plate for the high...

We examine how state governments adjusted spending in response to the large temporary increase in federal grants under the 2009 American Recovery and Reinvestment Act (ARRA). We concentrate our analysis on ARRA highway grants, which were especially likely to crowd out states’ own highway funding given the lack of matching requirements and according to past research on federal highway grants. Th...

Highway construction projects are one of the most important construction projects in the world. Therefore predicting the time of these kinds of projects is important. Basically highway projects are including few activities which are repeating along the horizontal direction. One of the best methods for scheduling these types of projects is linear scheduling method. The repetitive nature of the h...

This report recommends a method of implementing a numerical ground image system which will augment and interface with the Roadway Design System (RDS) developed in a previous research effort by the Texas Highway Department in cooperation with the Federal Highway Administration. Proprietary software packages, a previously developed research system and the scan profile system developed by the Depa...

As demonstrated in recent disasters such as the 1994 Northridge and 1995 Hyogoken-Nanbu (Kobe) earthquakes, urban areas can suffer potentially large economic losses when highway transportation systems are damaged in seismic events. This paper addresses the development of performance measures for highway systems that are suitable for estimating the economic impact of earthquake damage. Economic ...