Roundabouts promise potential safety and efficiency benefits in the homogenous
environment of conventional vehicles. However, their performance can deteriorate if high …

Transparent methods of estimating CO 2 emissions from transportation sources are
necessary to evaluate mitigation strategies. This study proposes a framework to assess the …

Roundabouts are considered as one of the most efficient forms of intersection that
substantially reduce the types of crashes that result in injury or loss of life. Nevertheless, they …

Knowledge of the characteristics of speed at roundabouts is very important in design
procedures, simulation models, and determining the influence of these roundabouts on …

Roundabouts are very useful when flows are balanced but can have operational challenges
when flows increase. Most roundabouts on arterial roadways in Ghana experience recurring …

The movement of the light rail vehicles (LRVs) is highly interrupted at level crossings during
peak hour times, especially when the intersections are not regulated by a coordinated signal …

Amaç (Aim) Dönel kavşak geometrik elemanlarının, güvenlik performanslarıyla olan
ilişkilerini bugüne kadar yapılmış araştırmalar ışığında ortaya koymaktır./To put forth the …

This study aimed to investigate the effect of geometric characteristics and traffic scenarios on
the performance measures, including delay, volume to capacity (v/c) ratio, capacity, and the …

Since their introduction in the late 1990s, basic turbo roundabouts have made a great
success in several European countries. Researchers, however, have been unable to reach …

Traffic congestion and environmental pollution are among the most common problems that
are encountered in many cities in the world. To minimize the negative effects of these …