Perpeetuum path solution for increased speed on difficult roads

Abstract

Increased velocity on narrow and difficult road segments (serpentine or mountain roads) has always been a problem with limited solutions. The average speed of traffic between origin-destination points depends directly on the driving speed of these road segments with speed limit. The solution presented in this paper focuses on the road type, amended design requirements and technical elements of infrastructure and road safety. The pilot project discussed, the basic model, is the E81 European Road section (DN7) called Olt Valley, portion of 67.4 km between the towns Boiţa and Lunca involving many traffic accidents and difficult traffic, which will be transited in standard driving mode in approximately one hour. This study reveals the situation where this stretch of road will be transited with an average speed of 90 km / h, in a 25% shorter time, with reduced resources, while maintaining normal safety and comfort levels.