A Method of Estimating Speed and Flow of Traffic From a Moving Vehicle.

Wardrop, J G; Charlesworth, G

doi:10.1680/ipeds.1954.11628

Cited by 55 publications

(35 citation statements)

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“…There are two methods to the moving observer method such as floating car procedure and other approach was developed by Wardrop and Charlesworth (1954) for urban traffic measurements and its meant to obtain both speed and volume measurement simultaneously. This method have been widely used by researcher for findings of traffic characteristics and also stated that this method is best for findings as well as detailed steps explained (Kontaratos, 2007;Wright, 1973;Morton & Jackson, 1992).…”

Section: Determination Of Traffic Flow Using Floating Car Methodsmentioning

confidence: 99%

“…There are two approaches for the moving observer method which are floating car procedure and other is for urban traffic measurements developed by Wardrop and Charlesworth (1954). The "moving observer method" is the way of estimating the average flow and travel time of traffic travelling in either direction over a road link entirely from measurements made from a moving vehicle with and against the stream for non-congestion conditions.…”

Section: Literature Reviewmentioning

confidence: 99%

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Analysis of Traffic Characteristics in Sylhet City and Development of Utility Function

Yadav¹,

Ali²,

Das³

et al. 2016

MAS

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Sylhet is a Metropolitan city of north east part of Bangladesh, aspect severe traffic problem due to speedy and unrestrained development. This happens due to intolerable level of inequity in transportation demand and supply scenario. To assess the asperity of the existing traffic system engrossed by enormous traffic problem in Sylhet city a study was steered by Civil and Environmental Engineering department. Purpose of this study to show the traffic characteristic in Sylhet City and developed utility function of numerous modes of vehicles. Floating car or Moving observer method were used to determine the traffic characteristics and multiple regression is used to develop utility function. Results shows that center of city (Bondor to Amborkhana) have highest traffic flow and overcrowding. It is conceived that this outcome will assist in the development of future traffic model and prevent from traffic congestion of Sylhet City.

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Section: Determination Of Traffic Flow Using Floating Car Methodsmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Analysis of Traffic Characteristics in Sylhet City and Development of Utility Function

Yadav¹,

Ali²,

Das³

et al. 2016

MAS

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“…[1] proposed the original "moving observer method" as a method of estimating the average flow and travel time of traffic moving in one or the other direction on a freeway segment. The method was founded upon the measurements made by the moving observer in a test vehicle embedded in the traffic.…”

Section: Moving Observer Methodsmentioning

confidence: 99%

“…However, it is difficult to measure all these variables in a single attempt. The moving observer method for traffic stream estimation has been created to facilitate the concurrent estimation of traffic stream variables [1]. This method offers an approach to obtain the complete state of the traffic stream using only two observers in a moving vehicle.…”

Section: Traffic Models Backgroundmentioning

confidence: 99%

A Statistical Comparison of Traffic Measurements from the Moving versus Stationary Observer Methods

Alhomaidat¹,

Ardekani²

2015

JTTs

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Data of traffic flow, speed and density are required for planning, designing, and modelling of traffic stream for all parts of the road system. Specialized equipments such as stationary counts are used to record volume and speed; but they are expensive, difficult to set up, and require periodic maintenance. The moving observer method was proposed in 1954 by Wardrop and Charlesworth to estimate these variables inexpensively. Basically, the observer counts the number of vehicles overtaken, the number of vehicles passed, and the number of vehicles encountered while traveling in the opposite direction. The trip time is reported for both travel directions. Additionally, the length of road segment is measured. These variables are then used in estimating speeds and volumes. In a westbound direction from Interstate Highway 30 (I-30) in the DFW area, this study examined the accuracy and feasibility of this method by comparing it with stationary observer method as the standard method for such counts. The statistical tests were used to test the accuracy. Results show that this method provides accurate volume and speed estimates when compared to the stationary method for the road segment with three lanes per direction, especially when several runs are taken.

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“…The second one introduced by Wardrop et.al. [7] for urban traffic measurements. This approach intends to obtain both speed and volume measurements simultaneously.…”

Section: Introductionmentioning

confidence: 99%