View source for Passengers per hour per direction

{{short description|Measure of passenger capacity of a transportation network}}
'''Passengers per hour per direction''' ('''p/h/d'''),<ref>United Kingdom Parliament, [http://www.parliament.the-stationery-office.com/pa/cm200405/cmselect/cmtran/378/378we62.htm Integrated Transport: The Future of Light Rail and Modern Trams in Britain Inquiry, Memorandum by Transport for London (LR 77)] {{webarchive|url=https://web.archive.org/web/20110716221303/http://www.parliament.the-stationery-office.com/pa/cm200405/cmselect/cmtran/378/378we62.htm |date=2011-07-16 }}, 2005-08-10.</ref> '''passengers per hour in peak direction'''<ref>U.S. Department of Transportation, [http://www.nbrti.org/docs/pdf/South%20American%20BRT%20Report_FINAL_December%202007.pdf Report on South American Bus Rapid Transit Field Visits: Tracking the Evolution of the TransMilenio Model] {{webarchive|url=https://web.archive.org/web/20110726013937/http://www.nbrti.org/docs/pdf/South%20American%20BRT%20Report_FINAL_December%202007.pdf |date=2011-07-26 }}, 2007-12, retrieved 2008-07-10.</ref> ('''pphpd''') or '''corridor capacity'''<ref>{{Cite web |title=Corridor capacity of different modes of transportation (people/hr on a 3.5 mile-wide lane). Source: Modifi ed from Breithaupt, 2010 |url=https://www.researchgate.net/figure/Corridor-capacity-of-different-modes-of-transportation-people-hr-on-a-35-mile-wide_fig8_262030493}}</ref><ref>{{Cite web |title=7.4 Calculating Corridor Capacity |url=https://brtguide.itdp.org/branch/master/guide/system-speed-and-capacity/calculating-corridor-capacity |access-date=2022-11-18 |website=brtguide.itdp.org}}</ref> is a measure of the [[route capacity]] of a [[rapid transit]] or [[public transport]] system.
==Definition==
[[File:Passenger Capacity of different Transport Modes.png|thumb|Comparative passenger capacity per hour of various modes of transport]]
The '''corridor capacity''' in the [[passenger transport]] field refers to the maximum number of people which can be safely and comfortably transported per unit of time over a certain way with a defined width.
The corridor capacity does not measure the number of vehicles which can be transported over such way, since the nuclear objective of passenger mobility is to transport passengers, not vehicles.<ref>{{Cite web|url=http://www.indiaenvironmentportal.org.in/files/file/changing-course-urban-transport-illustrated-guide.pdf|title=Changing Course in Urban Transport, page 55|last=Asian Development Bank|website=indiaenvironmentportal.org.in|access-date=10 February 2018}}</ref><ref>{{Cite journal|last=BOTMA and PAPENDRECHT|first=HANS and HEIN|title=Traffic Operation of Bicycle Traffic| url=http://onlinepubs.trb.org/Onlinepubs/trr/1991/1320/1320-009.pdf |journal=Transportation Research Record|pages=1320|via=http://onlinepubs.trb.org}}</ref>
[[File:Corridor Capacity.png|thumb|Corridor capacity in '''pax/(s&middot;m)''']]
In terms of quantities defined within the [[International System of Units]], the corridor capacity may be measured in units of <math>\mathrm{s}^{-1}\cdot \mathrm{m}^{-1}</math>, ''i.e.'', the maximum number of passengers per second per meter of the corridor's width.
An approximately equivalent concept in physics is [[volumetric flux]].
==Directional flow==
[[File:Escalators Canary Wharf.jpg|thumb|upright|Three parallel [[escalator]]s; the direction of the middle escalator can be changed to double capacity in one direction (↑↑↓&nbsp;or&nbsp;↑↓↓).]]
Many public transport systems handle a high directional flow of passengers— often traveling to work in a [[city]] in the morning [[rush hour]] and away from the said city in the late afternoon.
To increase the passenger throughput, many systems can be reconfigured to change the direction of the optimized flow.
A common example is a [[train station|railway]] or [[metro station]] with more than two parallel [[escalator]]s, where the majority of the escalators can be set to move in one direction.
This gives rise to the measure of the peak-flow rather than a simple average of half of the total capacity.
==See also==
*{{Annotated link|Annual average daily traffic}}
*{{Annotated link|Patronage (transportation)}}
**{{Annotated link|Crush load}}
**{{Annotated link|Headway}}
**{{Annotated link|Passenger load factor}}
*{{Annotated link|Traffic flow}}
**{{Annotated link|Traffic congestion}}
*{{Annotated link|Urban planning}}
==References==
{{reflist}}
[[Category:Public transport]]
[[Category:Temporal rates]]
[[Category:Transportation planning]]
[[Category:Units of temporal rate]]
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