At the annual Purdue Road School last year, a discussion of traffic paints was presented that included some general considerations, traffic-paint formulation, and traffic-paint re­ search.* Both the selection and the application of traffic paints were discussed. The research program on traffic paints of the Joint Highway Research Project was well under way at that time. The scope, purpose, and ...

Level of Service of Safety is a new concept in the field of traffic safety in China and developed countries, it is a quality indicator which is used to describe the road traffic safety situation and roads providing service of traffic safety for traffic participants. Introducing the study status of the Level of Service of Safety in China and developed countries, the definition of the concept, ap...

The policy of driving organization such as Highways Agency is towards the use of performance related specifications. This policy and adoption of European wide aggregate standards on the one hand, and sustainable construction pressures on the other, all strongly emphasize on further need for more developments to specifications and performance assessment methodologies inst...

T theory of real options offers an approach for the valuation of investments in real assets, based on the methodology developed for financial options. This approach is especially appropriate in the context of strategic decision making under conditions of uncertainty. This is the case for the valuation of highway concessions, where real options arise from certain clauses of the contracts, for ex...

We propose pro-social control strategies for connected automated vehicles (CAVs) to mitigate jamming waves in mixed-autonomy multi-lane traffic, resulting from car-following dynamics of human-driven (HDVs). Different existing studies, which focus mostly on ego vehicle objectives CAVs an individualistic manner, we devise a algorithm. The latter takes into account the (i.e., driving comfort and t...

Highway Interchange projects present particularly complex and changing geometric configurations. Such configurations are hard to visualize and understand, and associated management, construction decisions, and traffic control strategies are difficult to optimize and communicate. This paper presents a computerbased system, which utilizes 3D and 4D CAD technology in order to: facilitate the commu...

This article proves the existence and uniqueness of a weak solution to a scalar conservation law on a bounded domain. A weak formulation of hybrid boundary conditions is needed for the problem to be well posed. The boundary conditions are represented by a hybrid automaton with switches between the modes determined by the direction of characteristics of the system at the boundary. The existence ...

In the frame of project «Criteria traffic control quality and effectiveness in Russian Federation» Transportation Laboratory ISTU was invoved into elaboration network performance appraisal. Two alternative congestion measures were considered. The ratio peak period to free flow travel times proposed as a test criterion urban highway reliability.