A simulation study of truck passenger car equivalents (PCE) on basic freeway sections

Webster, Nathan; Elefteriadou, Lily

doi:10.1016/s0965-8564(98)00036-6

Cited by 106 publications

(54 citation statements)

References 2 publications

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“…Today, the definition remains essentially the same in HCM 2010as "the number of passenger cars that will result in the same operational conditions as a single heavy vehicle of a particular type under specified roadway, traffic, and control conditions" [4]. Simply put, the passenger car equivalent of a vehicle represents the number of passenger cars that would have an equivalent effect on the quality of the traffic flow under prevailing conditions [5]. In some countries, the heterogeneous nature of local traffic has led to the expansion of the scope of PCEs to include even non-motorized vehiclessuch as rickshaws, bullock carts, and handcarts [6].…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, almost all PCE evaluation techniques tend to be based on one type of traffic flow variable or another. While most PCE estimation approaches use headways [1,[8][9][10], others are based on speeds [11], delay [12][13][14], density [5,15], travel time [16] and even platoon formation [11]. Whichever approach is used, the outcome shouldreflect prevailing local conditions and the character of local traffic.…”

Section: Introductionmentioning

confidence: 99%

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Passenger Car Equivalents for Vehicles at Signalized Intersections within the Kumasi Metropolis in Ghana

Obiri-Yeboah¹

2014

IOSRJEN

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Abstract:-Passenger car equivalents (PCEs) used in Ghana have been adopted from other countries and, therefore, cannot be said to capture the impact of local conditions in signalized intersection analysis. In this study, passenger car equivalents were evaluated for three vehicle categories; cars, medium vehicles, and trucks, which use signalized intersections within the Kumasi Metropolis, Ghana. The objective was to develop PCEs which truly reflect the prevailing traffic mix, flow conditions and the effect of roadside friction at the intersections. Data was collected on discharge headways at eleven signalized intersections controlled by pretimed signals,and using the headway ratio method, PCEs of the three categories of vehicles were estimated. PCE values were higher at intersections with roadside friction than those at intersections devoid of such friction. In comparison, the values obtained from the study are larger than those adopted from elsewhere and probably reflect more accurately the impact of local conditions on discharge at the intersections. This underscores the need to develop PCEs appropriate to local conditions rather than adopt from other standards.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Passenger Car Equivalents for Vehicles at Signalized Intersections within the Kumasi Metropolis in Ghana

Obiri-Yeboah¹

2014

IOSRJEN

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“…The criteria used are delay [14], speed [15,16], density [17,18], headway [19] and queue discharge flow [20]. Truly speaking, the basis for PCU estimation should be the same as used for defining the level of service (LOS) for a roadway type.…”

Section: Estimation Of Pcu Factorsmentioning

confidence: 99%

Influence of Operating Speed on Capacity of Urban Arterial Midblock Sections

Dhamaniya

Chandra

2017

Int J Civ Eng

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“…Elefteriadou et al, 1997), (iii) density (e.g. Webster and Elefteriadou, 1999), (iv) headway (e.g. Krammes and Crowley, 1986) and (v) queue discharge (e.g.…”

Section: Literature Reviewmentioning

confidence: 99%

“…There was great variability in PCE values as a function of the weight/ horsepower ratio as well as of vehicle length. Webster and Elefteriadou (1999) also studied the effect of eight highway traffic variables on truck passenger car equivalency (PCE), based on traffic density, using simulation technique. The following inferences were made through the study: PCE value tends to increase with traffic flow, free flow speed, and grade/length of grade; and PCE value tends to decrease with an increase in truck percentage and number of lanes.…”

Section: Literature Reviewmentioning

confidence: 99%

Influence of Traffic Mix on Pcu Value of Vehicles Under Heterogeneous Traffic Conditions

Praveen¹,

Arasan²

2013

IJTTE

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Study of the basic traffic flow characteristics like traffic volume is the pre-requisites for the effective planning, design, operation and management of roadway systems. Traffic in developing countries like India is heterogeneous in nature consisting of vehicles of different categories with widely varying dimensional and operational characteristics. The moving vehicles of heterogeneous traffic occupy any convenient lateral position on the road without any lane discipline, based on the availability of space. The interaction between moving vehicles under such traffic condition is highly complex in nature, which can be represented in terms of the amount of impedance caused to flow of traffic by a vehicle type in comparison with that of standard vehicle (passenger car). Passenger Car Unit (PCU) can be an appropriate measure to represent the relative impedance caused by a vehicle in heterogeneous traffic. This paper is concerned with the application micro-simulation technique to derive equivalency values (PCU factors) on a purely homogeneous (cars-only) traffic stream as well as on a heterogeneous traffic stream for different categories of road vehicles over a wide range of traffic flow and compositions on four-lane divided urban roads in India. The PCU values obtained for the different types of vehicles, for a wide range of traffic volume and composition, indicate that the PCU values of a vehicle type significantly changes with change in traffic volume and composition.

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A simulation study of truck passenger car equivalents (PCE) on basic freeway sections

Cited by 106 publications

References 2 publications

Passenger Car Equivalents for Vehicles at Signalized Intersections within the Kumasi Metropolis in Ghana

Passenger Car Equivalents for Vehicles at Signalized Intersections within the Kumasi Metropolis in Ghana

Influence of Operating Speed on Capacity of Urban Arterial Midblock Sections

Influence of Traffic Mix on Pcu Value of Vehicles Under Heterogeneous Traffic Conditions

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