Review Reports

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

 

The article “Formalizing Sustainable Urban Mobility Management: An Innovative Approach with Digital Twin and Integrated Modelling” presents an interesting application of Digital Twin technology in urban transportation systems. The paper is generally well-organized and addresses an important topic, but the authors have made some errors that should be corrected before publication:

1. In Figure 1, the notation “<<140Component>>” appears frequently. What does this notation represent, and how should it be interpreted? Is the notation “<<140Component>>” intentional?
2. The summary corresponds well with the results of the work; however, the conclusions provided are quite obvious and general. Therefore, I suggest expanding the paragraph from lines 635 to 639.
3. The main issue, in my opinion, is the lack of verification of the achievement of the primary goal of the article. The authors clearly state that the goal is to create a Digital Twin (DT) for urban mobility management, assessing the sustainability of mobility scenarios, improving air quality, reducing congestion, shortening travel times, and optimizing energy consumption. The authors emphasize that validation is a key element that must be carried out continuously to ensure the accuracy and reliability of the model. I understand that the realization of this goal and the novelty (as indicated by the authors, the approach to validation) is mainly presented in section 5.1. However, this description is too general to assess the actual outcome of the work. There is a lack of detailed data and examples that would allow the reader to precisely verify what has been done. The article is descriptive but does not provide sufficient information on specific actions and results. There is a lack of detailed descriptions of the methodology, experimental results, and specific examples of DT application in practice. The reader does not have full insight into the depth of the work carried out and its effectiveness.

Summary: The authors have achieved the stated goal in terms of general description and theoretical assumptions, but there is a lack of detailed data and examples that would allow for a full verification and assessment of the work carried out. The article could be more convincing if it included specific data, results, and examples of DT application in practice. In its current form, it does not provide the reader with practically any significant information. Therefore, it is necessary to expand this point and appropriately extend the Discussion section.

 

Author Response

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Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors

The article is very interesting in its content and development but cannot be published in its current state. The following changes are proposed:

In the introduction a last paragraph is needed to organise the structure of the research.

Is there a phased methodology? Would it be necessary to organise it in phases and show how to proceed? It is not clear.

In the development of the case study it is necessary to justify why it is the most appropriate.

The discussion is very poorly justified. 

It would be necessary to analyse the limitations of the study and to extend the future work of the research.

 

Author Response

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Author Response File: Author Response.pdf

Reviewer 3 Report

Comments and Suggestions for Authors

Review paper: Formalizing Sustainable Urban Mobility Management: an in-novative approach with Digital Twin and Integrated Modelling

- This paper “ Formalizing Sustainable Urban Mobility Management: an in-novative approach with Digital Twin and Integrated Modelling” explores the use of digital twins to enhance urban mobility management, addressing key issues such as air quality, congestion, and energy consumption in cities. The research focuses on integrating synthetic and real-world data using tools like Specification and Description Language for Graphical Representations (SDL/GR) and simulation models such as SUMO and SAGA to represent urban mobility dynamics accurately. The methodology formalizes the process of digital twin creation through Specification and Description Language (SDL), facilitating clear communication among stakeholders and enabling continuous validation of mobility systems. By incorporating multicriteria analysis to optimize technologies and TraCI for real-time data integration, the model allows for ongoing improvements and operational adjustments in urban planning. The results show that the digital twin enhances urban mobility management by providing a dynamic and interactive tool that aligns mobility decisions with sustainability goals, improving citizens' quality of life.

- To better understand this paper, it is necessary to clarify certain points as follows:

1. How does the application of SDL/GR in the digital twin creation process help improve the communication and synchronization of data from various urban mobility sources?

2. How does the integration of SUMO and SAGA contribute to enhancing the predictive capabilities of the digital twin for emissions and energy consumption assessments?

3. What limitations does the paper mention in the application of synthetic data in the model help in understanding mobility patterns influenced by social factors?

 

 

Comments on the Quality of English Language

minor editing of english is required

Author Response

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Author Response File: Author Response.pdf

Reviewer 4 Report

Comments and Suggestions for Authors

This article introduces an innovative approach that combines SUMO and SAGA with SDL for formalizing sustainable urban travel management. In the era of digital transformation, integration has become a key priority for organizations in various industries, especially in the context of Industry 4.0. This demand also extends to the transportation sector, as simulated travel needs can be decomposed into multiple components that need to communicate with each other. The article proposes an innovative approach that combines SUMO and SAGA with SDL, providing a formal framework to enhance communication among stakeholders and standardize the process of creating urban travel digital twins (DT). SDL simplifies the comparison between simulation and real-time street monitoring data, enabling activity-based models to be validated in real time, promoting the integration of urban travel DT with other fields such as housing, energy, and pollution, and continuously validating and verifying in a cycle that includes stakeholders.

This manuscript is very well-written, the model details and the application in this city are very well presented. This manuscript can be accepted in this form without revision from my view.

Only one comment is the authors may considering in their future work to extend the measured time of NOX fuel in figure 7 to 9. And maybe considering the season factors, summer winter etc.

Author Response

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Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

Comments and Suggestions for Authors

The authors have made considerable efforts to enhance the previous version of the article. In its current form, the publication significantly improves the understanding of the work presented. The revisions, particularly in sections 4, 6, and 7, provide clearer insights and stronger arguments, making the overall contribution more valuable to the field.