General scores for accessibility and inequality measures in urban areas

Biazzo, Indaco; Monechi, Bernardo; Loreto, Vittorio

doi:10.1098/rsos.190979

Cited by 33 publications

(25 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Later in this section, we shall define a measure of efficiency focusing on the total travel time and the total number of trips. There are measures of transport or commuting efficiency defined in the literature addressing different aspects of the movements [20,[32][33][34][35][36]. The route factor and its generalizations compare the topological distances in the network with the geometrical distances [33,35].…”

Section: Now Suppose Thatmentioning

confidence: 99%

“…The excess commuting index on the other hand concerns with distribution of home and work places and compares the actual commuting distances with a theoretical optimal one [32,34]. Finally, the accessibility of a city can be quantified by the velocity and sociability scores defined in [36]. Each of these measures focuses on some structural or dynamical properties of the network and the commuting process.…”

Section: Now Suppose Thatmentioning

confidence: 99%

See 1 more Smart Citation

Efficiency and irreversibility of movements in a city

Biazzo

Ramezanpour

2020

Sci Rep

Self Cite

View full text Add to dashboard Cite

We know that maximal efficiency in physical systems is attained by reversible processes. It is then interesting to see how irreversibility affects efficiency in other systems, e.g., in a city. In this study, we focus on a cyclic process of movements (home to workplace and back to home) in a city to investigate the above question. To this end, we present a minimal model of the movements, along with plausible definitions for the efficiency and irreversibility of the process; more precisely, we take the inverse of the total travel time per number of trips for efficiency and the relative entropy of the forward and backward flow distributions for the process irreversibility. We perform numerical simulations of the model for reasonable choices of the population distribution, the mobility law, and the movement strategy. The results show that the efficiency of movements is indeed negatively correlated with the above measure of irreversibility. The structure of the network and the impact of the flows on the travel times are the main factors here that affect the time intervals of arriving to destinations and returning to origins, which are usually larger than the time interval of the departures. This in turn gives rise to diverging of the backward flows from the forward ones and results to entropy (disorder or uncertainty) production in the system. The findings of this study might be helpful in characterizing more accurately the city efficiency and in better understanding of the main working principles of these complex systems.

show abstract

Section: Now Suppose Thatmentioning

confidence: 99%

Section: Now Suppose Thatmentioning

confidence: 99%

Efficiency and irreversibility of movements in a city

Biazzo

Ramezanpour

2020

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…Consider the following two measures of mobility: weighted reach and furthest reachable point. Weighted reach or reachability is an accessibility measure (Levinson 2012;Biazzo et al 2018) that counts, for each hex node i, the number of other hexes j reachable from i, weighted by the inverse of the time to reach j:…”

Section: Network Flow and Urban Mobilitymentioning

confidence: 99%

“…Although highly consistent, there are differences in traversal duration and availability across the day. Our current analysis is meant to be an aggregate flow across typically available transportation methods, but more refined data for Japan's train and bus systems could make an analysis that depends on the time of day possible (Ayed et al 2011;Cherdarchuk 2014;Idri et al 2017;Biazzo et al 2018).…”

Section: Future Workmentioning

confidence: 99%

Social and economic flows across multimodal transportation networks in the Greater Tokyo Area

Bramson

Hori²,

Zha³

et al. 2020

Appl Netw Sci

View full text Add to dashboard Cite

We model the flow of human capital and resources across multimodal transportation networks throughout the Greater Tokyo Area. Our transportation networks include trains, buses, and roads integrated with a walking network among a geographically grounded hexagonal grid and connecting nodes of different modes. The hexagonal grid holds data on both the working population and number of jobs from which we built probability distributions for the origins and destinations of commuting trips. Using both the network simplex method and stochastically generated origin-destination trips we estimate the population flows necessary to satisfy this demand. Rather than micro-simulations of actual commuting patterns, congestion, or route planning, our approach aims to uncover patterns in the aggregate flow of human resources to and from economic opportunities. We describe the details of the socioeconomic data, network generation, and the results of our exploratory analysis, then discuss the implications of these findings for transportation usage and future work.

show abstract

“…Information is also available at all times of the day, avoiding the problems associated with the organization of meetings, opening up opportunities for more people to take part to a public consultation. Moreover, with a web-based system, the public is provided with access to interactive online planning documents can help the audience to focus on particular places, rather than wade through a long document to find the policies that may have implications for their lives [21].…”

mentioning

confidence: 99%

Mapping with Stakeholders: An Overview of Public Participatory GIS and VGI in Transport Decision-Making

Giuffrida

Pira

Inturri

et al. 2019

IJGI

View full text Add to dashboard Cite

Transport decision-making problems are typically spatially based and involve a set of feasible alternatives with multiple evaluation criteria. Besides, transport decisions affect citizens’ quality of life, as well as specific interests of general stakeholders (e.g., transport companies), thus needing a participatory approach to decision-making. Geographic Information Systems (GIS) have the ability to visualize spatial data and represent the impact of location based transport alternatives, thus helping experts to conduct robust assessments. Moreover, with the recent diffusion of Volunteered Geographic Information (VGI) and development of Public Participatory GIS (PPGIS) platforms, the process can be enhanced thanks to the collection of a large amount of updated spatial data and the achievement of an active community participation. In this study, we provide an overview based on a structured literature review of the use of VGI and PPGIS in transport studies, exploring the fields of application, role played by GIS, level of public involvement and decision stage at which they are applied. From the overview’s results, we propose a general framework for the evaluation of transport alternatives using GIS from a multiple stakeholder point of view; the main conclusion is the usefulness of the integration between Public Participation, GIS and quantitative evaluation methods, in particular Multi Criteria Decision Analysis, in order to foster technically sound and shared decisions.

show abstract

General scores for accessibility and inequality measures in urban areas

Cited by 33 publications

References 42 publications

Efficiency and irreversibility of movements in a city

Efficiency and irreversibility of movements in a city

Social and economic flows across multimodal transportation networks in the Greater Tokyo Area

Mapping with Stakeholders: An Overview of Public Participatory GIS and VGI in Transport Decision-Making

Contact Info

Product

Resources

About