Headway is the distance or duration between vehicles in a transit system measured in space or time. The minimum headway is the shortest such distance or time achievable by a system without a reduction in the speed of vehicles. The precise definition varies depending on the application, but it is most commonly measured as the distance from the tip (front end) of one vehicle to the tip of the next one behind it. It can be expressed as the distance between vehicles, or as time it will take for the trailing vehicle to cover that distance. A "shorter" headway signifies closer spacing between the vehicles. Airplanes operate with headways measured in hours or days, freight trains and commuter rail systems might have headways measured in parts of an hour, metro and light rail systems operate with
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| - Headway (en)
- Waktu antara (in)
- Hiaat (verkeerskunde) (nl)
- 運転時隔 (ja)
- Headway (pt)
- 班距 (zh)
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| - Waktu antara atau dikenal juga sebagai headway adalah waktu antara dua sarana angkutan untuk melewati suatu titik/tempat perhentian bus/stasiun kereta api. Semakin kecil waktu antara semakin tinggi kapasitas dari prasarana. Waktu antara digunakan dalam rekayasa lalu lintas di jalan dalam kaitannya dengan kapasitas jalan dan dalam pengoperasian kereta api. (in)
- 運転時隔（うんてんじかく、英語: train headway）とは、鉄道で同一路線で同一方向へ運転される列車同士の時間的な間隔のことである。 (ja)
- Headway é o intervalo entre trens. Este parâmetro é dado em segundos e está proporcionalmente ligado à performance operacional de uma linha de metrô ou trem de subúrbio. Quanto menor é o valor do "headway", melhor é o desempenho da linha. Em contrapartida, exige uma quantidade maior de trens rodando nesta linha e maior velocidade dos mesmos para atingir o headway especificado. Quanto menor o headway, ou seja, quanto mais trens rodando no mesmo trilho, maior deve ser a velocidade deles e maior a tecnologia envolvida, pois o risco de colisão se torna maior. (pt)
- 班距又稱班次，是指巴士、鐵路、渡輪等公共交通系統計算服務時間的一種方式。每一班次相隔的時間，可以分鐘、小時為單位。 由於巴士受路面因素影響較多，故為了確保班次準確，部份路線會設立定時點，巴士停站後需等待到某個特定時間才開出。同样的，巴士也有可能晚点，导致乘客不便。 著名公共交通规划师杰里特-沃克（Jarrett Walker）说过：“短的班距就是自由。”一条公交线路的班距如果在10分钟以下，晚点的影响也不会特别大。 (zh)
- Headway is the distance or duration between vehicles in a transit system measured in space or time. The minimum headway is the shortest such distance or time achievable by a system without a reduction in the speed of vehicles. The precise definition varies depending on the application, but it is most commonly measured as the distance from the tip (front end) of one vehicle to the tip of the next one behind it. It can be expressed as the distance between vehicles, or as time it will take for the trailing vehicle to cover that distance. A "shorter" headway signifies closer spacing between the vehicles. Airplanes operate with headways measured in hours or days, freight trains and commuter rail systems might have headways measured in parts of an hour, metro and light rail systems operate with (en)
- De term hiaat wordt in de verkeerskunde gebruikt om een tijd of afstand uit te drukken tussen voertuigen. Naast 'hiaat' worden ook de termen volgtijd en volgafstand gebruikt.Voorbeelden:
* Verkeersdeelnemers moeten bij het oversteken van ongeregelde kruispunten een geschikt hiaat afwachten alvorens over te steken. Men spreekt van een geaccepteerd of geweigerd hiaat, afhankelijk van de keuze van de oversteker om over te steken of te blijven wachten op het volgende hiaat.
* Bij het rijden op de autosnelweg moet men een veilig hiaat in acht nemen tot de voorligger.
* Bij het inhalen op een tweestrooksweg moet men het hiaat inschatten dat men heeft ten opzichte van een tegemoetkomend voertuig en beslissen of dit hiaat voldoende is om de inhaalbeweging uit te voeren.
* Op een autoweg of aut (nl)
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| - Headway is the distance or duration between vehicles in a transit system measured in space or time. The minimum headway is the shortest such distance or time achievable by a system without a reduction in the speed of vehicles. The precise definition varies depending on the application, but it is most commonly measured as the distance from the tip (front end) of one vehicle to the tip of the next one behind it. It can be expressed as the distance between vehicles, or as time it will take for the trailing vehicle to cover that distance. A "shorter" headway signifies closer spacing between the vehicles. Airplanes operate with headways measured in hours or days, freight trains and commuter rail systems might have headways measured in parts of an hour, metro and light rail systems operate with headways on the order of 90 seconds to 20 minutes, and vehicles on a freeway can have as little as 2 seconds headway between them. Headway is a key input in calculating the overall route capacity of any transit system. A system that requires large headways has more empty space than passenger capacity, which lowers the total number of passengers or cargo quantity being transported for a given length of line (railroad or highway, for instance). In this case, the capacity has to be improved through the use of larger vehicles. On the other end of the scale, a system with short headways, like cars on a freeway, can offer relatively large capacities even though the vehicles carry few passengers. The term is most often applied to rail transport and bus transport, where low headways are often needed to move large numbers of people in mass transit railways and bus rapid transit systems. A lower headway requires more infrastructure, making lower headways expensive to achieve. Modern large cities require passenger rail systems with tremendous capacity, and low headways allow passenger demand to be met in all but the busiest cities. Newer signalling systems and moving block controls have significantly reduced headways in modern systems compared to the same lines only a few years ago. In principle, automated personal rapid transit systems and automobile platoons could reduce headways to as little as fractions of a second. (en)
- Waktu antara atau dikenal juga sebagai headway adalah waktu antara dua sarana angkutan untuk melewati suatu titik/tempat perhentian bus/stasiun kereta api. Semakin kecil waktu antara semakin tinggi kapasitas dari prasarana. Waktu antara digunakan dalam rekayasa lalu lintas di jalan dalam kaitannya dengan kapasitas jalan dan dalam pengoperasian kereta api. (in)
- De term hiaat wordt in de verkeerskunde gebruikt om een tijd of afstand uit te drukken tussen voertuigen. Naast 'hiaat' worden ook de termen volgtijd en volgafstand gebruikt.Voorbeelden:
* Verkeersdeelnemers moeten bij het oversteken van ongeregelde kruispunten een geschikt hiaat afwachten alvorens over te steken. Men spreekt van een geaccepteerd of geweigerd hiaat, afhankelijk van de keuze van de oversteker om over te steken of te blijven wachten op het volgende hiaat.
* Bij het rijden op de autosnelweg moet men een veilig hiaat in acht nemen tot de voorligger.
* Bij het inhalen op een tweestrooksweg moet men het hiaat inschatten dat men heeft ten opzichte van een tegemoetkomend voertuig en beslissen of dit hiaat voldoende is om de inhaalbeweging uit te voeren.
* Op een autoweg of autosnelweg worden soms door middel van blokrijden hiaten in de verkeersstroom gecreëerd door weginspecteurs van Rijkswaterstaat of andere wegbeheerders, als er een gevaarlijk voorwerp of gewond dier van de weg moet worden verwijderd.
* Op een spoorweg wordt de minimale volgtijd begrensd door de onderlinge afstand van spoorwegseinen en het remvermogen van de treinen. (nl)
- 運転時隔（うんてんじかく、英語: train headway）とは、鉄道で同一路線で同一方向へ運転される列車同士の時間的な間隔のことである。 (ja)
- Headway é o intervalo entre trens. Este parâmetro é dado em segundos e está proporcionalmente ligado à performance operacional de uma linha de metrô ou trem de subúrbio. Quanto menor é o valor do "headway", melhor é o desempenho da linha. Em contrapartida, exige uma quantidade maior de trens rodando nesta linha e maior velocidade dos mesmos para atingir o headway especificado. Quanto menor o headway, ou seja, quanto mais trens rodando no mesmo trilho, maior deve ser a velocidade deles e maior a tecnologia envolvida, pois o risco de colisão se torna maior. (pt)
- 班距又稱班次，是指巴士、鐵路、渡輪等公共交通系統計算服務時間的一種方式。每一班次相隔的時間，可以分鐘、小時為單位。 由於巴士受路面因素影響較多，故為了確保班次準確，部份路線會設立定時點，巴士停站後需等待到某個特定時間才開出。同样的，巴士也有可能晚点，导致乘客不便。 著名公共交通规划师杰里特-沃克（Jarrett Walker）说过：“短的班距就是自由。”一条公交线路的班距如果在10分钟以下，晚点的影响也不会特别大。 (zh)
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