Schedule delay

Schedule delay

Schedule delay is a term in transport modelling which refers to a difference between a desired time of arrival or departure and the actual time. Despite the use of "delay", it can refer to a difference in either the early or late direction.

The most common example is that of having a fixed work start time: if someone starts work at 0900 but actually arrives at 0850, they are incurring a schedule delay of 10 minutes. Alternative examples might include public transport - if a bus is scheduled to depart from a stop at 20-minute intervals (e.g. 0800, 0820, 0840) and a person wishes to begin their journey between those intervals (e.g. at 0815), they incur a schedule delay through having to retime their departure from the desired 0815 point to the bus departure time of 0820.

Schedule delay can be measured as a utility (or, rather, a disutility). The Small model of scheduling has the disutility of schedule delay decrease linearly towards zero as the actual arrival (or departure) time approaches the desired time. The disutility of schedule delay for a late arrival or departure also increase linearly, but Small hypothesises that there can also be a fixed penalty component of schedule delay on the "late" side - e.g. arriving late for work is always bad, even if it is only slightly late.

See also

* Transportation planning
* Mohring effect


* Small, K (1982), [ The Scheduling of Consumer Activities: Work Trips] , "American Economic Review" 72 (3), 467-479

Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • delay — vb 1 Delay, retard, slow, slacken, detain are not always close synonyms, but they carry the same basic meaning: to cause someone or something to be behind in his or its schedule or usual rate of movement or progress. Delay implies the operation,… …   New Dictionary of Synonyms

  • Delay, developmental — Behind schedule in reaching milestones of early childhood development …   Medical dictionary

  • IATA delay codes — For other uses, see IATA (disambiguation).IATA Delay Codes were created to help airlines standardize why a commercial flight left late from its departure airport.Previously every airline had its own system, so IATA standardized the format of… …   Wikipedia

  • Removal of cannabis from Schedule I of the Controlled Substances Act — In the United States, all preparations of the Cannabis plant intended for use as a psychoactive drug or for medicinal purposes are currently classified under Schedule I of the Controlled Substances Act, the most tightly restricted category… …   Wikipedia

  • Major League Baseball schedule — The Major League Baseball season is the set of scheduled games played prior to the postseason (playoffs). 162 games are played. Prior to 1961 in the American League and 1962 in the National, 154 games were played. The games are scheduled over 178 …   Wikipedia

  • Construction delay — Construction delays in residential and light construction are often the result of miscommunication between contractors, subcontractors, and property owners. These types of misunderstandings and unrealistic expectations are usually avoided through …   Wikipedia

  • Developmental delay — Behind schedule in reaching milestones of early childhood development. * * * considerable delay in the physical or mental development of children when compared with their peers. There are many causes. Global delay describes the state of a child… …   Medical dictionary

  • Induced demand — is the phenomenon that after supply increases, more of a good is consumed. This is entirely consistent with the economic theory of supply and demand; however, this idea has become important in the debate over the expansion of transportation… …   Wikipedia

  • 2008-09 A1 Grand Prix of Nations, Netherlands — A1GP race summary v2 country race=the Netherlands race no=1 of 10 season=2008 09 race circuit=Zandvoort.svg date=October 5 2008 circuit=Circuit Park Zandvoort city=Zandvoort country=Netherlands weather=Wet, Heavy Rain pole pole team=Netherlands… …   Wikipedia

  • Mohring effect — The Mohring effect is a technical property of transit systems demonstrating increasing returns. In brief, as transit frequencies increase, wait times decrease, demand increases, and transit frequencies can increase again. This is because transit… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”