MODELLING ROUNDABOUT ENTRY CAPACITY FOR MIXED TRAFFIC FLOW USING ANN: A CASE STUDY IN INDIA

Roundabouts, as an unsignalized intersection, have an effective preventative measure designed to control straight-line crashes. Efficient traffic flow in cities depends upon appropriate capacity estimation of roundabouts. This study attempts to develop models for roundabout entry capacity by applyin...

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Main Authors: Aarohi Kumar MUNSHI, Ashish Kumar PATNAIK
Format: Article
Language:English
Published: Silesian University of Technology 2024-06-01
Series:Scientific Journal of Silesian University of Technology. Series Transport
Subjects:
Online Access:https://sjsutst.polsl.pl/archives/2024/vol123/209_SJSUTST123_2024_Munshi_Patnaik.pdf
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author Aarohi Kumar MUNSHI
Ashish Kumar PATNAIK
author_facet Aarohi Kumar MUNSHI
Ashish Kumar PATNAIK
author_sort Aarohi Kumar MUNSHI
collection DOAJ
description Roundabouts, as an unsignalized intersection, have an effective preventative measure designed to control straight-line crashes. Efficient traffic flow in cities depends upon appropriate capacity estimation of roundabouts. This study attempts to develop models for roundabout entry capacity by applying Artificial Neural Network (ANN) analysis for mixed traffic flow conditions. Data was gathered from 27 roundabouts spread across India. The influence area for gap acceptance (INAGA) concept was used as a graphical method to identify critical gap (Tc) of entry flow at roundabouts. This study indicated that the Bayesian Regularisation Neural Network (BRNN) based model has the best R2 and RMSE of 0.97 and 167.8. The connection weight approach and Garson algorithm evaluate the significance of each explanatory variable and identify follow-up time (Tf) as a critical parameter with values of 11.10 and 21.15%, respectively.
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publisher Silesian University of Technology
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series Scientific Journal of Silesian University of Technology. Series Transport
spelling doaj-art-d9cf9f1a81dd435ea64c8d32d4ad57c62025-01-03T01:34:39ZengSilesian University of TechnologyScientific Journal of Silesian University of Technology. Series Transport0209-33242450-15492024-06-0112320922610.20858/sjsutst.2024.123.10MODELLING ROUNDABOUT ENTRY CAPACITY FOR MIXED TRAFFIC FLOW USING ANN: A CASE STUDY IN INDIAAarohi Kumar MUNSHIAshish Kumar PATNAIKRoundabouts, as an unsignalized intersection, have an effective preventative measure designed to control straight-line crashes. Efficient traffic flow in cities depends upon appropriate capacity estimation of roundabouts. This study attempts to develop models for roundabout entry capacity by applying Artificial Neural Network (ANN) analysis for mixed traffic flow conditions. Data was gathered from 27 roundabouts spread across India. The influence area for gap acceptance (INAGA) concept was used as a graphical method to identify critical gap (Tc) of entry flow at roundabouts. This study indicated that the Bayesian Regularisation Neural Network (BRNN) based model has the best R2 and RMSE of 0.97 and 167.8. The connection weight approach and Garson algorithm evaluate the significance of each explanatory variable and identify follow-up time (Tf) as a critical parameter with values of 11.10 and 21.15%, respectively.https://sjsutst.polsl.pl/archives/2024/vol123/209_SJSUTST123_2024_Munshi_Patnaik.pdfinagaann entry capacitygarson algorithm
spellingShingle Aarohi Kumar MUNSHI
Ashish Kumar PATNAIK
MODELLING ROUNDABOUT ENTRY CAPACITY FOR MIXED TRAFFIC FLOW USING ANN: A CASE STUDY IN INDIA
Scientific Journal of Silesian University of Technology. Series Transport
inaga
ann entry capacity
garson algorithm
title MODELLING ROUNDABOUT ENTRY CAPACITY FOR MIXED TRAFFIC FLOW USING ANN: A CASE STUDY IN INDIA
title_full MODELLING ROUNDABOUT ENTRY CAPACITY FOR MIXED TRAFFIC FLOW USING ANN: A CASE STUDY IN INDIA
title_fullStr MODELLING ROUNDABOUT ENTRY CAPACITY FOR MIXED TRAFFIC FLOW USING ANN: A CASE STUDY IN INDIA
title_full_unstemmed MODELLING ROUNDABOUT ENTRY CAPACITY FOR MIXED TRAFFIC FLOW USING ANN: A CASE STUDY IN INDIA
title_short MODELLING ROUNDABOUT ENTRY CAPACITY FOR MIXED TRAFFIC FLOW USING ANN: A CASE STUDY IN INDIA
title_sort modelling roundabout entry capacity for mixed traffic flow using ann a case study in india
topic inaga
ann entry capacity
garson algorithm
url https://sjsutst.polsl.pl/archives/2024/vol123/209_SJSUTST123_2024_Munshi_Patnaik.pdf
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