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Letter To The Editor

机译:给编辑的一封信

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摘要

Warrant 7 provides for consideration of a traffic signal installation at locations where at least five accidents of a type susceptible to correction by a signal (primarily right-angle collisions) have been reported within a 12-month period. The vehicle and pedestrian volumes should be at least 80 percent of those specified in the Manual on Uniform Traffic Control Devices (MUTCD), and progressive flow should not be seriously interrupted. Less restrictive remedies should be tried first. The five-accident clause has been in the former Accident Experience Warrant since 1935. It is based on studies at 599 intersections in 24 cities in the late 1920s and early 1930s. The studies found that signals produced an adverse effect on safety when installed at intersections that had fewer than four reported accidents per annum.
机译:保修单7规定在12个月内至少有五起事故类型的信号易于纠正(主要是直角碰撞)的场所考虑安装交通信号灯。车辆和行人流量应至少为《统一交通控制设备手册》(MUTCD)中指定的流量的80%,并且不应严重中断渐进式流量。限制性较小的补救措施应首先尝试。自1935年以来,五次事故条款一直存在于前事故经验保证书中。该条款基于1920年代末期和1930年代初对24个城市的599个十字路口的研究。研究发现,信号灯安装在每年少于四次报告事故的十字路口时,会对安全产生不利影响。

著录项

  • 来源
    《ITE journal》 |2009年第2期|p.12|共1页
  • 作者

    Kenneth Todd;

  • 作者单位
  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 交通运输;
  • 关键词

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