Siting priorities for congestion-reducing projects in Dhaka - A spatiotemporal analysis - Abstract

Jul 19, 2026

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Siting priorities for congestion-reducing projects in Dhaka is examined through a spatiotemporal analysis that connects traffic congestion patterns with travel times, air pollution outcomes, and exposure vulnerability across different population groups. The study evaluates how spatially stratified heterogeneity (SSH) should be measured and attributed to avoid biased investment priority rankings. Editorial and reviewer feedback highlights strengthened modeling descriptions, inclusion of SSH results and supporting figures/tables, and clarification of terminology to prevent misunderstanding of quantified mismatch versus generalized imbalance.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages91

Reading Time3 h 49 min

Comments from Editors and Reviewers

Reviewer 1

Reviewer 2

Reviewer 3

Reviewer 4

Manuscript Information

Journal and Manuscript Details

Authors and Keywords

Public Disc losure Authorized International Journal of Sustainable Transportation Siting priorities for congestion-reducing projects in Dhaka: A spatiotemporal analysis of traffic congestion, travel times, air pollution, and exposure vulnerability Pub lic Disc losure Authorized | Journal: | International Journal of Sustainable Transportation | | --- | --- | | Manuscript ID | UJST-2020-0512.R2 | | Manuscript Type: | Full Paper | | Date Submitted by the Author: | 26-Jul-2021 | | Complete List of Authors: | Dasgupta, Susmita; World Bank, Development Economics Research Group<br>Wheeler, David; World Bank Group, Development Economics Research Group<br>Khaliquzzaman, Md; World Bank, Bangladesh Country Department Huq, Mainul; World Bank, Bangladesh Country Office | | Keywords: | traffic congestion, air pollution, vulnerable population, travel time, Bangladesh | | | | URL: [http://mc.manuscriptcentral.com/ujst](http://mc.manuscriptcentral.com/ujst) Email: hhecwsc@hkucc.hku.hk Page 1 of 90 International Journal of Sustainable Transportation 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 Comments from the Editors and Reviewers: Reviewer: 1 Comments to the Author The authors have addressed all my concerns. I recommend publication in IJST. Reviewer: 2 Comments to the Author The revision is satisfactory. Reviewer: 3 Comments to the Author 1. To facilitate a review, please identity in your cover letter of the first round revision the lines where you made changes; 􀀃 Model: line 217-268. 􀀃 Diagram on input-output model: Note Figure 2 􀀃 SSH: Note the response below in Red 􀀃 “The mismatch between population and infrastructure”: Please note that in round 1 revision, we already pointed out in the response to reviewer’s document that “This phrase was in a paragraph that describes the overall imbalance between population and road infrastructure. Our paper actually quantifies the mismatch and its consequences in all four dimensions of the priority analysis: congestion, vehicular pollution, pollution vulnerability, and travel time. In the abovecited paragraph, we used the word “mismatch” to convey a general sense of the imbalance. We did not intend to imply that a generalized measure was feasible and, as we note in the paper, an explicit social objective function would be needed to combine the four priority-ranking dimensions into a common metric. We have edited the text to avoid any misunderstanding caused by our use of “mismatch”.” In the current revised file, in addition, please also note line 486-488 along with Footnote 20. 2. Your title includes " ...spatio... ", spatial stratified heterogeneity (SSH) should be measured and attributed. A global modelling approach would be confounded if SSH exists but is neglected, no matter what model you used. We have incorporated a new subsection (in red – lines 498-549) in the Results section that measures SSH and investigates its implications for the expected benefits index that is used to set investment priorities in the model. The SSH results and their implications are noted in the Discussion section (lines URL: [http://mc.manuscriptcentral.com/ujst](http://mc.manuscriptcentral.com/ujst) Email: hhecwsc@hkucc.hku.hk International Journal of Sustainable Transportation Page 2 of 90 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 592 – 596) . Supporting figures (figure 11 and Figure 12) and tables (Table 8, Table 9, Table 10) are also included. Reviewer: 4 Comments to the Author 1)The authors

FAQs

What core topic does the paper address?

The paper addresses siting priorities for congestion-reducing projects in Dhaka using a spatiotemporal framework.

Which outcome dimensions are analyzed alongside congestion?

It analyzes travel times, air pollution, and exposure vulnerability in addition to traffic congestion.

Why is spatially stratified heterogeneity (SSH) important in the modeling?

SSH should be measured and attributed to prevent confounding effects; if SSH exists but is neglected, expected benefits and investment priorities can be biased.

Jul 19, 2026

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