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There is a grading system which involves A to F to just like there is grade provided in elementary school that indicates roadway capacity in a better way.Engineers evaluated the system of transport on quality based on different factors including roadways in peak period traffic volume. This term is used for the transportation engineering field.
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It also describes the current methods used to measure this. This article discusses the level of service in transport planning and how it’s defined. The key to an effective LOS is the ability of a transportation system to provide safe and reliable service for its users. It is used to examine highways by categorizing traffic flow and allocating quality levels based on performances like speed, density, delay and many more. Level of Service is a qualitative measure used to symbolize the quality of traffic services. Related Article: Traffic Islands | Meaning, Use and Importance, Design principle for intersection On urban roads, the LOS is affected strongly by factors like the heterogeneity of traffic, speed regulations, frequency of intersections, presence of bus stops, on-street parking, roadside commercial activities, pedestrian volumes etc. A transport planner finds it useful for number of surveys.
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free flow and Level of Service is a part and frequently used term and concept of town planning. A representing the best operating condition i.e. Six levels of service are recognized commonly, designated from A to F, with Level of Service is a part and frequently used term and concept of town planning. LOS generally describes these conditions in terms of factors such as speed and travel time, freedom to manoeuvre, traffic interruptions, comfort, convenience and safety.