Evaluation and Analysis of CFI Schemes with Different Length of Displaced Left-Turn Lanes with Entropy Method
, Shasha Luo 1, Jinfeng Ying 1, Yang Shao 2, Shangru Liu 1, Xiang Li 1 and Jiaqi Lei 1
Round 1
Reviewer 1 Report
The paper is too long, there are too many repetitions. So it is difficult to read. It is recommended to eliminate repetitions and make it smoother.
The comments on firures 7-12 are too long and repetitive. Summarize them.
Also, I recommend presenting the methodological procedure first and then the case study. This could improve the structure of the paper.
It is not clear to me how the timing of the signal changes between diagrams a and b in figure 5.
In figure 6 the starting point of flow 4 is wrong, it should coincide with the lanes for the left turn.
On page 14 (lines 384 and 385) the two equations are the same, it must be an error.
Author Response
Please see the attachment.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
Page 1, Abstract, lines 2-3: “… in improving the sustainability of roadway.”. Please explain within your manuscript what do you mean by saying “sustainability of roadway”. You can include at this point some of the text presented on page 23, lines 584-886.
Page 2, Keywords: Please include “SSAM” in the keywords since it is an important software used in the framework of your research.
Page 1, Section 1. Introduction: My suggestion is to have 2 separate subsections, one dedicated to all the unconventional intersections apart from CFI and one dedicated only to CFI.
Page 2, lines 32-36: There are 13 references [7-19] which were included in this specific paragraph. Please enhance the text which is associated with these 13 references. The topics covered in this paragraph are very interesting for the readers and they would probably need more information to be provided by you.
Page 5, Figure 1: At the beginning of Figure 1 you refer to “Traffic congestion and emissions problems at intersections”. However, at the end of Figure 1 the output refers to “Improve traffic efficiency, reduce emissions and improve traffic safety”. Therefore, please add “traffic safety” in the box at the beginning of Figure 1.
Page 6, Figure 2. The location of the investigated intersection in Xi’an: Please include the source for the geographical background of the map.
Page 6, Figure 3. The location of the investigated intersection in Xi’an: Please include the source for the photograph.
Page 7, Figure 7: Why does the highest value of the Congestion Index in your case appear during the afternoon period and not during the morning period?
Page 7, Table 1: You refer to vehicles per hour (veh/h). Why don’t you use Passenger Car Units (PCUs) per hour instead of veh/hour?
Pages 7 and 8: According to Table 1, traffic volume during the morning peak hour is equal to 7936 veh/h. According to Table 2, when I add the numbers, it appears that traffic volume during the morning peak hour is equal to 7935 veh/h. Which of the two numbers is the correct one?
Page 8, Table 2, last column: I do not understand the meaning of minimum speed (km/h), zero value and 0.36 km/h.
Page 10, line 269: “…are based on the AASHTO ‘Highway Capacity Manual’ [59]”. The reference [59] appears to be “American Association of State and Highway Transportation Officials (AASHTO). Highway Capacity Manual. 6th edition. Washington, D.C., U.S.A. 2010.” (please see page 31). Why do not you use the most recent edition “Highway Capacity Manual, Sixth Edition: A Guide for Multimodal Mobility Analysis (HCM)” 2016 Edition?
Page 10, pages 269-270: “…the ‘Policy on Geometric Design of Highways and Streets’ [60]. The reference [60] appears to be “American Association of State and Highway Transportation Officials (AASHTO). A policy on geometric design of highways and streets 6th Edition. Washington, D.C., U.S.A., 2011.” (please see page 31). Why do not you use the most recent edition “A Policy on Geometric Design of Highways and Streets, 7th Edition 2018”?
Page 12, Table 5: Please include the “units” (e.g., for travel time etc.).
Page 13, Section 4. Sensitivity Analysis of Operational Performance: This Section is rather big (more than 9 pages). I understand that it is not easy to present all these Figures in another way. However, please consider the idea to present part of this material in an Appendix.
Page 14, line 373: Please change “…Volume-to–capacity ratio(V/C).” to “…Volume-to–Capacity ratio (V/C).”
Page 26, Figure 13: My suggestion is to include “The number 1 represents the existing scheme” within the text and not in the heading of Figure 13, since “1” does not appear in Figure 13.
Page 27, Section 6. Conclusions: I understand that you discuss indirectly the limitations and constraints of your research when you wrote about what can be further studied (in the last paragraph of the conclusions). However, my suggestion is to include in Section 6 an extensive paragraph dedicated only to the limitations and constraints of your research.
Page 30 (References), “36. TANWANICHKUL, L.; PITAKSRINGKARN, J.; BOONCHAWEE, S”: Please use small letters for the surnames of the authors.
Please check your manuscript throughout for English grammar and syntax errors (e.g., page 3, line 98, In other paperss).
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
The paper (in the new version) has certainly improved. All my suggestions have been accepted.
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
