Reducing Delay and Accidents with Retrofit Actions

With the nationwide emphasis on the reduction of vehicle delay and the companion improvement of through vehicle movement, the governmental agencies responsible for traffic operations are searching for ways to improve overall traffic operation. This led several states, cities, and counties to establish comprehensive access management programs that are implemented as part of retrofit projects. However, the implementation of access control programs along existing roadways frequently becomes hard to achieve. It is sometimes difficult to obtain the necessary political acceptance and project approval. This paper presents three case studies of implemented retrofit projects that emphasize the application of access management techniques. The case studies describe the project and the results of implementation. Transportation elements include changes, both positive and negative, in traffic operation, safety, capacity and in some cases, the effect on the adjacent properties.