Before-After Evaluation of FTMS Effectiveness
This paper demonstrated the possibilities for conducting before-after evaluation of a new freeway traffic management system (FTMS) using only data from the inductive loop detectors. Using...
Estimation of Queue Lengths in Urban Road Networks
In this paper we present a new scheme for the surveillance of traffic state on a link of an urban road network. It is shown that measurements of traffic counts and speed values from a...
Travel Time Data Fusion in Advance
The ADVANCE project in the Chicago metropolitan area is one of several ATIS operational tests currently underway in the USA and abroad. Fusion of equipped vehicle (probes) travel time...
Filtering and Prediction on Freeways Using Markov Models
A Markov compartment model of freeway traffic flow is presented and used to derive a Kalman Filter which tracks a freeway section's density, broken down by destination. The filter is then...
Freeway Control Systems for Using Section-Related Traffic Variable Detection
Traffic control systems for freeways are described which use section-related traffic variable measurement techniques. For deriving section-related variables feature sequence of a vehicle...
Using VRC Data for Incident Detection
Most existing incident detection algorithms use inductive loops, a relatively old sensor technology that obtains data at specific points along the roadway. This paper discusses the use...
Video Image Processing Application: Automatic Incident Detection on Freeways
This paper presents the results of tests carried out in the last 3 months of 1992 regarding the Automatic Incident Detection System elaborated in the INAVID project (DRIVE program). This...
Driver Assistance and Local Traffic Management, DALTM
This paper focus on some important features in the Swedish and European Road, Transport and informatic (RTI) program - the intelligent communication between road infrastructure and the...
Rural Applications of IVHS
The Intelligent Vehicle Highway Systems (IVHS) program in the U.S.A. is understandably directed primarily toward urbanized areas where congestion is highest. Despite having somewhat less...
Motorist Aid Systems ? Intelligent Roadside Controllers
Advanced technology call boxes, employing a variety of communications networks and embedded microprocessors, have brought a new level of functionality and extensibility to motorists aid...
Traffic Information and Management in a Geographically Distributed Computing Environment
This paper presents a comprehensive architecture for a geographically distributed traffic information/management system, and demonstrates the viability of such an architecture using GIS,...
Traffic Information and Driver Behavior in France
The 600 Kilometer freeway network within a 30 Kilometer radius around Paris handles 40% of the overall regional traffic volume (number of vehicles). This network is now operated by a single...
Advanced Highway Control on the Central Artery
The Boston Central Artery/Tunnel project involves highways 190 and 193, in downtown Boston, placing underground 7 miles of four to eight lane tunnels. The project, with 37 lane-miles underground,...
Neural Networks in Freeway Control
Hierarchical control strategies have been proposed for freeway optimum control since the 1960's. Multi-layer hierarchical control optimizes system performance to determine a nominal metering...
Improvement of Terminal Reliability and Travel Time Reliability Under Traffic Management
Terminal reliability and travel time reliability of road networks are proposed as new indicators for road network management and construction. First, the significance of road network management...
IVHS-Organizational Structure and Staffing
Continuing technology advances in IVHS present challenges that many states are unable to meet with their current staffs. Only a few states have recognized the need to plan the need to...
Cooperation and Competitiveness in IVHS
This paper is an attempt to understand the competitive aspects involved in the implementation of IVHS technologies worldwide. IVHS concepts and products are envisaged in similar ways in...
Traffic Mark Classification Using Artificial Neural Networks
A system using artificial neural networks to identify types of pavement marks and to rank their recognizabilities is proposed.The system stores different types of traffic marks; associates...
Univeral System Architecture ? Based on European Field Trials
From the ongoing major IVHS/RIT operational field tests in Europe and taking into account the results of the 3 years Berlin field trial LISB it can be assumed that the winning communications...
Twelve Keys to Improved IVHS Evaluations
Evaluation plays an important role in the development of credible information on intelligent vehicle-highway system (IVHS) performance. In December 1992, a national workshop was held to...
Return to search