Bridges built from any material and having any special shape  will eventually show signs of wearing off; therefore, there are several factors in the kind and rate of such wearing off and its expansion such as atmosphere, flood, earthquake, overload, design quality, execution and kind of materials that will all reduce the functionality of the structures. Thus, maintaining processes and repairing...

Automated Workzone Information Systems (AWIS) have been developed, and some of them have been deployed in the field. Several field operational test studies have been conducted in the past to evaluate system functionality and reliability. However, there were few studies evaluating the effectiveness of AWIS in reducing traffic delays, which is of high interest of transportation agencies. Unlike t...

Adaptive Cruise Control (ACC) is assumed to have a potential to improve quality-of-service and safety and to reduce the environmental impact of the road traffic system. This paper use vehicle trajectories from traffic simulation to study impacts of ACC on vehicle acceleration and deceleration rates. The analysis is based on traffic simulations with car-following models including ACC functionali...

Traffic telematics comprises services like traffic information, navigation, and emergency call services. Providers of such services need large spatial databases especially for the representation of detailed street networks. However, the implementation of the services requires a functionality which cannot be offered by a state-of-the-art spatial database system. In this paper, some typical requi...

We propose a decentralized traffic information system—AutoNomos—that is based on a thorough investigation of the properties of traffic and recommends a hierarchical data aggregation and forwarding for providing individualized information and support to road users. Our approach differs from work in the field by consequently applying local rules and local decentralized data processing, which turn...

Routing in computer network is an essential functionality, which influence both the network management as the quality of services in global networks. The management of the traffic flows has to satisfy requirements for volume of traffic to be transmitted as avoidance of congestions for decreasing the transmission delays. These two requirements in general are contradictory. The optimal traffic ma...

In conventional networks, correlating path information to resource utilisation on the granularity of packets is a hard problem when using policy-based traffic handling schemes. We introduce a new approach termed ‘intrinsic monitoring’ which relies on the use of IPv6 extension headers in combination with formal behaviour models to gather resource information along a path. This allows a network m...

Differentiated service (Diffserv) is a set of technologies used to enable the provisioning of class-based, differentiated quality of service. One of the essential building blocks to realize Diffserv is the use of traffic conditioning mechanisms to support the required forwarding behavior. In this paper, a generic model for traffic conditioning is proposed. The generic traffic conditioner (GTC) ...

With the proliferation of online multimedia content, the popularity of multimedia streaming technology, and the establishment of MPEG video coding standards, it is important to investigate how to efficiently implement an MPEG video streaming system. Digital video cassette recording (VCR) functionality (such as random access, fast forward, fast reverse, etc.) enables quick and user-friendly brow...

A train control system is a system that is geographically and functionally distributed. Its subsystems have a high degree of autonomy. Because of these characteristics, this paper describes a two-layer framework for modeling train control systems. The upper-layer is defined by agents. The lower-layer is the cellular automata (CA) traffic model to simulate the train following dynamic. The CA mod...