Скачать или смотреть Highway Safety Series: Evaluating and Selecting the Best Safety Alternatives

Highway Safety Series: Evaluating and Selecting the Best Safety Alternatives - International Road Federation 1995 - Video VH-385B - Visit the International Road Federation at http://www.irfnews.org/ - Noncommercial Use Only - Published with Permission - Alternative improvements were previously prepared for each high-accident site; now calculation of accident reduction for each improvement alternative is shown and its cost is estimated. Improvement costs include annual maintenance and operating costs. Alternatives are compared on the basis of net annual benefit or benefit cost ratio. Formulas are given for calculation and data sources are suggested, and alternatives are ranked. Phase 4, developing and implementing an improvement program, receives relatively little attention in this video since it may involve a wide variety of project types spread over a number of years. Documentation of the as-built improvement is the last step of this phase.