摘要: |
The Roadside Safety Analysis Program (RSAP) is based on the encroachment probability approach and incorporates two integrated programs: the Main Analysis Program which contains the cost effectiveness procedures and algorithms and the User Interface Program, which provides a user-friendly environment for data input and review of the program results. The documentation which is the Engineer's Manual, describes the inner workings of the cost effectiveness analysis procedure and the various algorithms and data sources built into the procedure. The User's Manual and the RSAP software are provided on the accompanying CD-ROM. The objective of this study is to develop an improved cost effectiveness analysis procedure for use in the assessing roadside safety improvements. The new procedure will do the following: (1) Incorporates new or improved data and algorithms wherever available; (2) Be capable of evaluating alternative roadside safety treatments at spot locations and over sections of roadway; (3) Be applicable for development of warrants and guidelines of safety features with different performance levels; (4) Provide a framework that will allow rapid incorporation of new data, such as the driver responses to ran-off road situations to be developed under NCHRP Project 17-11; and (5) Be computerized and easy to use (i.e., be user-friendly). |