An Analysis of Traffic Conflicts as a Tool for Sustainable Road Transport
Round 1
Reviewer 1 Report
The authors of the paper illustrate method for the analysis of traffic conflicts using video equipment for sustainable road transport.
The subject of the paper is good. However the style of the paper has to be improved.
The novelty of the paper should be highlighted more clearly in all sections.
The presented figures are poor. The authors have to include scale for Figure 6 and 9, orientation symbol and locator map. Moreover, reduce the figures.
Figure 2 and 4, define all pieces in the figure or delete the figures.
Make it clear how did you realize the connection of your study to the sustainable transport.
The introduction section is weak, the motivation, justification, and contribution should be more emphasizes in the introduction section. Moreover, it needs presenting more related works about developing road transport and its role in resulting sustainable urban transport.
Line 265, define “MS”
Additionally described this issue in discussion section, moreover, some evaluation should be added in relation to existing research.
It would be better to discuss the recent works related to developing public transport system in introduction and discussion parts. I suggest the following reflection points:
- Moslem, S., Farooq, D., Ghorbanzadeh, O., & Blaschke, T. (2020). Application of the AHP-BWM model for evaluating driver behavior factors related to road safety: A case study for Budapest. Symmetry, 12(2), 243.
- Zefreh, M. M., & Török, A. (2020). Distribution of traffic speed in different traffic conditions: an empirical study in Budapest. Transport, 35(1), 68-86.
- Moslem, S., Gul, M., Farooq, D., Celik, E., Ghorbanzadeh, O., & Blaschke, T. (2020). An integrated approach of best-worst method (bwm) and triangular fuzzy sets for evaluating driver behavior factors related to road safety. Mathematics, 8(3), 414.
- Zefreh, M., & Torok, A. (2018). Theoretical comparison of the effects of different traffic conditions on urban road traffic noise. Journal of Advanced Transportation, 2018.
- The structure of the paper should be based on below sections:
1- Introduction
2. Literature review
3. Materials and Methods
4. Results
5. Discussion
6. Conclusion
References
Author Response
Please see the attachment.
Among other things, we checked English using a native speaker. However, after approval of the reviewers' manuscript, we will use Language Editing by MDPI.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
It is an interesting paper on traffic conflict study at roundabout. The topic is related to sustainable transportation system design. Authors did good job on data collection method, and definition of conflict types, etc.
My major concern is that missing information on how many hours of data were collected, and used to estimate conflict rates in table 1. Also in the data analysis part, I did not find any statistically hypothesis test if the conflicts are caused by design or drivers?
I attached some minor editing comments in the attached file.
Comments for author File: Comments.pdf
Author Response
Please see the attachment.
Among other things, we checked English using a native speaker. However, after approval of the reviewers' manuscript, we will use Language Editing by MDPI.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
The authors covered almost all the recommended critical points in the paper.
Figure 8 , define all pieces in the figure or divide it into 4 figures.
Same situation with Figure 11
Discuss the following works in the conclusion part or in the introduction:
Zheng, L., Sayed, T., & Essa, M. (2019). Validating the bivariate extreme value modeling approach for road safety estimation with different traffic conflict indicators. Accident Analysis & Prevention, 123, 314-323.
Zheng, L., Sayed, T., & Essa, M. (2019). Bayesian hierarchical modeling of the non-stationary traffic conflict extremes for crash estimation. Analytic methods in accident research, 23, 100100.
Zheng, L., & Sayed, T. (2019). A full Bayes approach for traffic conflict-based before–after safety evaluation using extreme value theory. Accident Analysis & Prevention, 131, 308-315.
Author Response
We thank the reviewer for comments. All changes are done in the updated manuscripts, i.e.:
- the Figure 8 and its caption were edited
- the caption of the Figure 11 was changed (and also some of the captions of the Figures 12-20)
- new text in the paragraph 3 (page 3)
- new references [43-45]
Other modifications due to above changes:
- minor changes of size of some figures or formatting of captions
- change in the division of the Tables 1 and 2
Round 3
Reviewer 1 Report
The paper has been improved.
English improving is required.
Author Response
Thank you very much for your further comments. The text was corrected by MDPI. The updated manuscript will be submitted to the journal submission system.
