|
 |
推荐文章 |
|
|
|
|
|
|
|
 |
新闻搜索 |
|
|
|
|
|
|
|
|
专题文章导航 |
|
|
|
|
|
|
|
|
|
|
| GLOSSARY of Road Traffic Analysis Terms |
| [ 作者： | 来源： | 时间：2006-1-21 1:28:03 ] |
|
Opposed Movement
A movement (Filter Turn, Permitted Turn, Minor Movement) that gives way to one or more opposing traffic streams at a signalised or unsignalised intersection.
Opposing Movement
A movement that conflicts with, and has priority over, another (opposed) movement.
Overflow
An interrupted traffic condition when a number of queued vehicles are not able to depart due to insufficient capacity during a traffic signal or gap-acceptance cycle (also known as cycle failure).
Overflow Queue
Average number of vehicles per cycle left over at the end of green periods at signals or at the end of acceptable gap (unblock) periods during gap-acceptance process.
Overlap Movement
A movement that runs in consecutive phases without stopping during the associated intergreen period(s).
Parallel Pedestrian Movement
A signalised pedestrian movement that runs at the same time as the parallel vehicle movement (s) that are controlled by circular green displays.
Peak Flow Factor (PFF)
Ratio of the average demand flow rate in the Total Flow Period (e.g. one hour) to the demand flow rate in the Peak Flow Period (e.g. 15 minutes). This is equivalent to the more traditional term Peak Hour Factor (PHF) when the Total Flow Period is one hour.
Peak Period
The period that has the highest demand volume of traffic during the day (peak hour, peak half hour, etc).
Pedestrian Clearance Period
The Flashing Don’t Walk period that immediately follows the termination of pedestrian Walk display to enable pedestrians, who have just stepped off the kerb at the commencement of this period, to complete their crossing to the nearest kerb or refuge.
Pedestrian Crossing
A transverse strip of carriageway marked for the use of pedestrians crossing the road (mid-block or at intersections) at a place with a pedestrian crossing sign, and with or without alternating flashing twin yellow lights. Also called Zebra Crossing where indicated by parallel white stripes on the road surface. |
|
| 特别声明：本站除部分特别声明禁止转载的专稿外的其他文章可以自由转载，但请务必注明出处和原始作者。文章版权归文章原始作者所有, 本站不凭借所收集资料获取商业利益。对于被本站转载文章的个人和网站，我们表示深深的谢意。如果本站转载的文章有版权问题请联系编辑人员，我们尽快予以更正。 本站所有技术文章、专业软件资料仅供技术人员、高校师生学习交流之用，目的旨在促进与提高中国的交通技术水平；用户获取后不得用于商业目的，否则，所产生的法律责任本站概不负责。 |
|
上一篇：