| 翻訳と辞書 |
| Schedule padding ： ウィキペディア英語版 |
Schedule padding
In transportation, schedule padding, sometimes just called padding, is some amount of 'extra' time added to a schedule that allows it to be resilient to unpredictable delays. Schedule padding is, naturally enough, only required for transportation that operates on a fixed, published schedule, including public transport and airlines, or where timed connections are important, such as in many areas of passenger and freight transportation, where the things being carried need to be transferred to another vehicle. It is not right, therefore, to think of something like a taxi as operating with schedule padding.
For simple trips, schedule padding may be relatively negligible. If a vehicle encounters little delay, it may simply arrive at its destination early and either transact its business or wait until the scheduled time for some rendezvous. In public transport however, a number of timed stops may be strung together into a route and some amount of schedule padding may be needed for each part of the trip. A transit vehicle must not pass a timed stop before it is scheduled to do so, meaning that a conservatively padded schedule (one that has much padding) can substantially reduce overall speeds and increase travel times beyond what might have been necessary. It's important, therefore, to think about the probability and distribution of certain types of delay events, and the desired degree of on-time performance when establishing padding in public transport timetables.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Schedule padding」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|