Passenger Car Unit Estimation at Signalized Intersection for Non-lane Based Mixed Traffic Using Microscopic Simulation Model

Asaithambi, Gowri; Mourie, Hayjy Sekhar; Sivanandan, R.

doi:10.3311/pptr.8986

Cited by 10 publications

(9 citation statements)

References 5 publications

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“…This value indeed coincides with the suggestion of [32]: 'a satisfactory optimisation horizon should be in the order of the time needed to travel through the network'. In this paper, the traffic demand was modelled as unified PCU mostly used in traffic engineering [23]. The applied simulation period was 7200 s and the input traffic demand was generated based on real-world loop detector data (measured in the vicinity of the origin point) during a typical morning peak from 8:00 to 10:00 AM (see Fig.…”

Section: Simulation Scenariosmentioning

confidence: 99%

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Dynamic road pricing for optimal traffic flow management by using non‐linear model predictive control

Tettamanti

Török

Varga

2019

IET Intelligent Transport Systems

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Section: Simulation Scenariosmentioning

confidence: 99%

“…Practically, (3) depicts the state variation over the time period kT s , k + 1 T s . State variable x can also be represented as passenger car unit (PCU) (the different types of road vehicles can be expressed in the ratio of the private car)[23]. Inflow traffic Q in k compasses the sum of entering vehicles.…”

mentioning

confidence: 99%

Dynamic road pricing for optimal traffic flow management by using non‐linear model predictive control

Tettamanti

Török

Varga

2019

IET Intelligent Transport Systems

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“…Many scientific studies both in Poland and abroad have been devoted to the problems related to the conversion of real vehicles into passenger car equivalents and taking into account the impact of heavy vehicles on the traffic stream conditions and pavement design. These studies aimed to determine numerical values of passenger car equivalent factors for intersections without traffic lights (e.g., Mohan and Chandra, 2018a,b), intersections with traffic lights (e.g., Asaithambi et al, 2017;Mohan and Chandra, 2017;Biswas et al, 2018), roundabouts (e.g., Giuffre et al, 2017Giuffre et al, , 2018Kang and Nakamura, 2017;Sugiarto et al, 2018), and highways (e.g., Mehar, 2017, 2018;Zhou et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

The Passenger Car Equivalent Factors for Heavy Vehicles on Turbo Roundabouts

Macioszek

2019

Front. Built Environ.

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The presence of heavy and slower vehicles within the traffic stream significantly reduces traffic capacity. This reduction increases with the higher participation of heavy vehicles in the stream, which, compared to passenger cars, move at a lower speed. Furthermore, they occupy more space on the road, are characterized by a longer reaction time to the road traffic situations, and put greater pressure on the surface structure, etc. In order to conduct analyses related to determination of the conditions in the traffic stream, the traffic stream mixed in terms of composition is converted from real vehicles into passenger car equivalents. For this purpose, the passenger car equivalent factors (Ei) appropriate for a given group of vehicles are used. The paper presents the results of a study aimed to determine the numerical values of passenger car equivalent factors for heavy vehicles (trucks, buses, trucks with trailers, articulated buses) on turbo roundabouts. The research was carried out on turbo roundabouts located in Poland.

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“…Empirical evidence shows that the structure of traffic patterns makes operational conditions on highways, roads and intersections far from ideal conditions such as the Highway Capacity Manual (2000; 2010; 2016) describes. Heterogeneity of drivers, users and vehicles interacting with each other in traffic has effect both on the levels of operational quality and on safety conditions of road entities (e.g., Kiran and Verma, 2016;Asaithambi et al, 2017). Interaction among vehicles having various sizes, and static and dynamic features could also affect the accuracy of whatever traffic assessment and management application (Raj et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Passenger Car Equivalents for Heavy Vehicles at Roundabouts. a Synthesis Review

Giuffrè

Granà

Giuffrè

et al. 2019

Front. Built Environ.

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Passenger Car Equivalents (PCEs in the following) are used to transform a mixed fleet of vehicles into a fleet of equivalent passenger cars and to analyze capacity and levelof-service of roads and intersections. Most roundabouts guidelines propose constant values for PCEs but a single PCE value can result improper under heterogeneous traffic conditions. PCEs should be vary with traffic and road conditions and consequently PCEs applied to undersaturated traffic conditions can overestimate the heavy vehicle effect or be not sensitive to the traffic level or characteristics of heavy vehicles. Compared to other at-grade intersections, the interaction between the operational performances of the heavy vehicles and the geometric features at roundabouts can produce significant impacts on the heavy vehicle paths and traffic operations due to the curvilinear nature of the roundabout design. Literature presents various methods of estimation to obtain PCE values for heavy vehicles. The focus of this paper is to review statistical methods and traffic simulation studies based on microscopic approaches used to calculate PCEs for heavy vehicles driving roundabouts. Effects on capacity and estimates of PCEs based on models currently employed in roundabout analysis are also compared. The results obtained in this study aim at providing an overview of the existing knowledge concerning the estimation of PCEs at roundabouts and can represent a guideline for transportation engineers in planning, design and capacity analysis of roundabouts that operate under conditions of mixed traffic.

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Passenger Car Unit Estimation at Signalized Intersection for Non-lane Based Mixed Traffic Using Microscopic Simulation Model

Abstract: Abstract

Cited by 10 publications

References 5 publications

Dynamic road pricing for optimal traffic flow management by using non‐linear model predictive control

Dynamic road pricing for optimal traffic flow management by using non‐linear model predictive control

The Passenger Car Equivalent Factors for Heavy Vehicles on Turbo Roundabouts

Passenger Car Equivalents for Heavy Vehicles at Roundabouts. a Synthesis Review

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