Analyzing the Impact of Traffic Congestion Mitigation: From an Explainable Neural Network Learning Framework to Marginal Effect Analyses

Computational graphs (CGs) have been widely utilized in numerical analysis and deep learning to represent directed forward networks of data flows between operations. This paper aims to develop an explainable learning framework that can fully integrate three major steps of decision support: Synthesis...

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Main Authors: Jianping Sun, Jifu Guo, Xin Wu, Qian Zhu, Danting Wu, Kai Xian, Xuesong Zhou
Format: Article
Language:English
Published: MDPI AG 2019-05-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/19/10/2254
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author Jianping Sun
Jifu Guo
Xin Wu
Qian Zhu
Danting Wu
Kai Xian
Xuesong Zhou
author_facet Jianping Sun
Jifu Guo
Xin Wu
Qian Zhu
Danting Wu
Kai Xian
Xuesong Zhou
author_sort Jianping Sun
collection DOAJ
description Computational graphs (CGs) have been widely utilized in numerical analysis and deep learning to represent directed forward networks of data flows between operations. This paper aims to develop an explainable learning framework that can fully integrate three major steps of decision support: Synthesis of diverse traffic data, multilayered traffic demand estimation, and marginal effect analyses for transport policies. Following the big data-driven transportation computational graph (BTCG) framework, which is an emerging framework for explainable neural networks, we map different external traffic measurements collected from household survey data, mobile phone data, floating car data, and sensor networks to multilayered demand variables in a CG. Furthermore, we extend the CG-based framework by mapping different congestion mitigation strategies to CG layers individually or in combination, allowing the marginal effects and potential migration magnitudes of the strategies to be reliably quantified. Using the TensorFlow architecture, we evaluate our framework on the Sioux Falls network and present a large-scale case study based on a subnetwork of Beijing using a data set from the metropolitan planning organization.
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spelling doaj.art-8025d06fe1f941fa8afa3f98c9cd45062022-12-22T04:24:40ZengMDPI AGSensors1424-82202019-05-011910225410.3390/s19102254s19102254Analyzing the Impact of Traffic Congestion Mitigation: From an Explainable Neural Network Learning Framework to Marginal Effect AnalysesJianping Sun0Jifu Guo1Xin Wu2Qian Zhu3Danting Wu4Kai Xian5Xuesong Zhou6School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85281, USASchool of Transportation and Logistics, Southwest Jiaotong University, Chengdu 611756, ChinaSchool of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, ChinaBeijing Transport Institute, Beijing 100073, ChinaBeijing Transport Institute, Beijing 100073, ChinaComputational graphs (CGs) have been widely utilized in numerical analysis and deep learning to represent directed forward networks of data flows between operations. This paper aims to develop an explainable learning framework that can fully integrate three major steps of decision support: Synthesis of diverse traffic data, multilayered traffic demand estimation, and marginal effect analyses for transport policies. Following the big data-driven transportation computational graph (BTCG) framework, which is an emerging framework for explainable neural networks, we map different external traffic measurements collected from household survey data, mobile phone data, floating car data, and sensor networks to multilayered demand variables in a CG. Furthermore, we extend the CG-based framework by mapping different congestion mitigation strategies to CG layers individually or in combination, allowing the marginal effects and potential migration magnitudes of the strategies to be reliably quantified. Using the TensorFlow architecture, we evaluate our framework on the Sioux Falls network and present a large-scale case study based on a subnetwork of Beijing using a data set from the metropolitan planning organization.https://www.mdpi.com/1424-8220/19/10/2254computational graphtraffic demand estimationcongestion mitigationmarginal analysesTensorFlow
spellingShingle Jianping Sun
Jifu Guo
Xin Wu
Qian Zhu
Danting Wu
Kai Xian
Xuesong Zhou
Analyzing the Impact of Traffic Congestion Mitigation: From an Explainable Neural Network Learning Framework to Marginal Effect Analyses
Sensors
computational graph
traffic demand estimation
congestion mitigation
marginal analyses
TensorFlow
title Analyzing the Impact of Traffic Congestion Mitigation: From an Explainable Neural Network Learning Framework to Marginal Effect Analyses
title_full Analyzing the Impact of Traffic Congestion Mitigation: From an Explainable Neural Network Learning Framework to Marginal Effect Analyses
title_fullStr Analyzing the Impact of Traffic Congestion Mitigation: From an Explainable Neural Network Learning Framework to Marginal Effect Analyses
title_full_unstemmed Analyzing the Impact of Traffic Congestion Mitigation: From an Explainable Neural Network Learning Framework to Marginal Effect Analyses
title_short Analyzing the Impact of Traffic Congestion Mitigation: From an Explainable Neural Network Learning Framework to Marginal Effect Analyses
title_sort analyzing the impact of traffic congestion mitigation from an explainable neural network learning framework to marginal effect analyses
topic computational graph
traffic demand estimation
congestion mitigation
marginal analyses
TensorFlow
url https://www.mdpi.com/1424-8220/19/10/2254
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