Existing potential functions (PFs) utilized in autonomous vehicles mainly focus on solving the path-planning problems some conventional driving scenarios; thus, their performance may not be satisfactory context of emergency obstacle avoidance. Therefore, we propose a novel model predictive controller (MPPC) combined with PFs to handle complex traffic scenarios (e.g., avoidance when sudden accid...

Highway construction projects have always suffered from cost overruns due to extended project delivery, causing a loss of public funds. Since highways are the backbone nation, purpose this study is measure criticality factors that influence performance highway projects. A survey instrument was prepared and distributed 185 managers. To achieve aim study, exploratory factor analysis used standard...

Vehicle detection and tracking applications play an important role for civilian and military applications such as in highway traffic surveillance control, management and urban traffic planning. Vehicle detection process on road are used for vehicle tracking, counts, average speed of each individual vehicle, traffic analysis and vehicle categorizing objectives and may be implemented under differ...

Accurate cost estimation in the early stage of project lifecycle is essential for both effective financial planning and cost control of construction projects. Previous efforts by the research team have developed a Web-based Intelligent Cost Estimator (WICE) system. This paper describes a further step of WICE research to develop a special-purpose web agent for various highway construction projec...

The World Bank USA Lead Highway Engineer Henry Godfrey Rupiny Kerali This paper describes the development of a stochastic model for the strategic assessment of road maintenance funding and policy decisions. The algorithms used for simulating pavement deterioration utilise Markov processes, resulting in a transition probability matrix that defines defect progression as opposed to the more famili...

Traffic flow micro simulations are popular for the planning of transport problems due to their temporal and spatial resolution. Cellular automata (CA) model are mathematical idealizations of physical systems in which space and time are discrete, and physical quantities take on a finite set of discrete values .In this paper , we are exploring the usefulness of CA to traffic flow modeling. A CA m...

The main aim of this paper is to point out the assumptions motorway operation effects on local transport. We assume positive starting specific section road I/11. This connects cities Žilina and Čadca. It considered as one most problematic sections Slovak Republic because high intensity individual transport freight or cargo issue growing beyond regional level reaching alarming proportions. needs...

Vehicle detection and tracking applications play an important role for civilian and military applications such as in highway traffic surveillance control, management and urban traffic planning. Vehicle detection process on road are used for vehicle tracking, counts, average speed of each individual vehicle, traffic analysis and vehicle categorizing objectives and may be implemented under differ...

In curve design such as highway design andmotion planning of autonomous vehicles, it may be important to minimize the maximum curvature. In this paper we address the problem of minimizing the maximum curvature of a quadratic Bézier curve within a boundary constraint determined by a tetragonal concave polygon. The curve is parameterized by lengths between its control points, called the ‘‘control...

At present, no practical methodology exists for routine prediction of stream meander migration and uncertainty concerning the level of risk to infrastructure remains unacceptably high. This paper describes a Handbook that includes ArcView 3.2-based Bend Measurement and Channel Migration Predictor extensions, which provides a practical methodology to transportation engineers, floodplain managers...