SAFETY AND OPERATIONAL ANALYSIS FOR MEDIAN U-TURN INTERSECTIONS IN THAILAND

Evaluating the Operational Features of an Unconventional Dual-Bay U-Turn Design for Intersections

Median U-turn intersection treatment (MUTIT) has been considered an alternative measure to reduce congestion and traffic conflict at intersection areas. The MUTIT is sometimes difficult to implement in the field because it requires wide median on arterials for U-turn vehicles. The objective of this study is to introduce an unconventional U-turn treatment (UUT) for intersections which requires l...

Safety and Operational Impacts of Alternative Intersections

Safety Effects of Protected Left-Turn Phasing at Signalized Intersections: An Empirical Analysis

Left-turn crashes occur frequently at signalized intersections and often lead to severe injuries. This problem can be addressed through the implementation of protected left-turn signals. This gives left-turning vehicles the right to enter the intersection free from conflict with opposing drivers and pedestrians. The present study analyses the effect of this measure on crash occurrence. The stud...

Energy U-turn in Germany

Following the disaster at Fukushima-Daiichi, chancellor Angela Merkel decided to speed up rather than slow down Germany's exit from nuclear power.

Offsetting Opposing Left-Turn Lanes at Signalized Intersections: A Safety Assessment Case Study in Lincoln, Nebraska

Opposing left-turning vehicles at signalized intersections block each others’ view of oncoming traffic. The ability to see oncoming traffic is critical for safe negotiation of left-turns at intersections during a permitted left-turn phase of the signal. Offsetting of opposing left-turn lanes at signalized intersections improves sight distance for left-turning motorists. This paper reports on a ...