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首页> 美国政府科技报告 >Improved Method of Using Traffic Estimates to Evaluate Intersection Improvements; Final rept. for Jul 02 Mar 08
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Improved Method of Using Traffic Estimates to Evaluate Intersection Improvements; Final rept. for Jul 02 Mar 08

机译：使用交通估计来评估交叉口改进的改进方法;最终的评估。适用于2008年3月2日

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Traffic volume estimating is necessary for planning, designing and maintaining a reasonable quality of service along roadway networks. Reliable estimation of traffic volumes is needed to realistically assess problems and determine appropriate solutions that meet the expectations of the traveling public. Regression equations were developed to find the relationship between average peak hour volume and the design volume/average annual daily traffic to ensure the appropriate design of geometric and traffic control improvements that best fit traffic characteristics in Nebraska. Basic linear regression equations were used to extrapolate the number of hours in a year that have more volume than the average peak hour volume in a given year. It was found that the average peak hour was equivalent to about the power of 270 highest hourly volume of a typical year. This value is the average number of hours during which the average peak hour volume was exceeded for a specific year. Therefore, use of average PHV as an estimate for design may not be appropriate for Nebraska or at least must be understood by practitioners as a value that can be exceeded many, many times during the year.

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