Research

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22 pages, 4016 KiB

Open AccessArticle

Driving Behaviour and Usability: Should In-Vehicle Speed Limit Warnings Be Paired with Overhead Gantry?

by William Payre and Cyriel Diels

Future Transp. 2023, 3(1), 1-22; https://doi.org/10.3390/futuretransp3010001 - 26 Dec 2022

Cited by 1 | Viewed by 1598

Variable speed limits (VSL) aim at improving safety and traffic fluidity by increasing drivers’ awareness. In the present simulator study, VSL displayed on overhead gantries on a motorway were also displayed on a mobile phone, fixed on the vehicle’s centre console, with distance-based [...] Read more.

Variable speed limits (VSL) aim at improving safety and traffic fluidity by increasing drivers’ awareness. In the present simulator study, VSL displayed on overhead gantries on a motorway were also displayed on a mobile phone, fixed on the vehicle’s centre console, with distance-based triggers (250 m vs. 500 m from the overhead gantry). Results showed drivers (N = 20) complied with the in-vehicle information, which was congruent with the upcoming gantry. The sooner the in-vehicle VSL, the faster the speed when speed limits increased. Similarly, the sooner the in-vehicle VSL, the slower the speed when speed limits decreased. Later in-vehicle VSL resulted in lower speed homogeneity, which is a safety concern. Speed homogeneity was greater when no in-vehicle VSL were displayed. Finally, the 70 mph VSL were affecting driving behaviour differently. These results suggested that there might be traffic disruption and more erratic longitudinal vehicle control on real roads. Full article

(This article belongs to the Special Issue Future Mobility and Transport Applications)

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19 pages, 1903 KiB

Open AccessArticle

Efficiency of Regional Airports: Insights on the Effect of Airline Type and Seasonal Variations in Traffic

by Ioanna Pagoni and Annitsa Koumoutsidi

Future Transp. 2022, 2(4), 774-792; https://doi.org/10.3390/futuretransp2040043 - 21 Sep 2022

Viewed by 2184

Abstract

This paper aims at exploring the efficiency of regional airports, whose traffic is highly dependent on touristic flows, and the impact of some external factors such as low-cost airlines, charter air traffic and seasonality. The analysis focuses on the airport market in Greece [...] Read more.

This paper aims at exploring the efficiency of regional airports, whose traffic is highly dependent on touristic flows, and the impact of some external factors such as low-cost airlines, charter air traffic and seasonality. The analysis focuses on the airport market in Greece within the time period from 2010 to 2016. A bootstrapped data envelopment analysis model is developed and the Malmquist Productivity Index is computed to estimate the total productivity change between 2010 and 2016. This is followed by a tobit regression model to estimate the impact of the external factors on the airport efficiency scores. Our findings indicate that the considered factors significantly affect airport efficiency. More specifically, the low-cost airlines and charter flights contribute to increasing airport efficiency, while the seasonality might be seen as an obstacle to improving airport efficiency. To the best of our knowledge, this research goes beyond any previous study in the Greek airport market and could be useful for several practitioners, such as airlines, airport operators and hotel businesses, as well as policy-makers and authorities. Full article

(This article belongs to the Special Issue Future Mobility and Transport Applications)

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19 pages, 1326 KiB

Open AccessArticle

Assessment of Personal Rapid Transit System Configurations Regarding Efficiency and Service Quality

by Felix Gotzler, Franziska Neumann and Lennart Adenaw

Future Transp. 2022, 2(3), 734-752; https://doi.org/10.3390/futuretransp2030041 - 06 Sep 2022

Cited by 1 | Viewed by 2484

Abstract

In order to transform cities into more liveable, safe, and sustainable places, we must shift our mobility paradigms. As one auspicious concept amongst novel intelligent transportation systems, personal rapid transit (PRT) disaggregates urban transportation into small, electric vessels that are centrally operated on [...] Read more.

In order to transform cities into more liveable, safe, and sustainable places, we must shift our mobility paradigms. As one auspicious concept amongst novel intelligent transportation systems, personal rapid transit (PRT) disaggregates urban transportation into small, electric vessels that are centrally operated on dedicated infrastructure, yielding the potential to make public transit more convenient, affordable, and sustainable all at once. In light of this, we examined the potential performance of PRT in a medium-sized German city. Utilizing the traffic simulator SUMO, as well as a specifically developed open source mobility scenario consisting of infrastructure and travel demand, we assessed the level of service and efficiency. We found that a fleet of 30 vehicles can serve the mobility demand of the chosen city while passenger waiting times are guaranteed to stay below three minutes. Vehicle occupancies can be doubled when coordinating vehicles between stations instead of letting them idle randomly. Furthermore, our results show that different combinations of system designs and operating strategies succeed in meeting typical performance requirements—for instance, an operating strategy where unoccupied vehicles idle randomly can effectively compensate for a reduced fleetsize. Depending on the preliminaries of specific cities, such as the availability of space, travel behavior, political background, or acceptable investment and operational costs, a matching transportation system can be designed around the quantitative findings obtained in this study. Full article

(This article belongs to the Special Issue Future Mobility and Transport Applications)

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10 pages, 3171 KiB

Open AccessArticle

The Influence of Public Transportation Stops on Bike-Sharing Destination Trips: Spatial Analysis of Budapest City

by Ahmed Jaber, Laila Abu Baker and Bálint Csonka

Future Transp. 2022, 2(3), 688-697; https://doi.org/10.3390/futuretransp2030038 - 02 Aug 2022

Cited by 8 | Viewed by 2296

Abstract

This research looks at how spatial factors of public transportation influence the use of bike-sharing in an urban context. Based on a grid-cell-based method, ordinary least square regression and geographically weighted regression (GWR) are developed to reveal the link between the spatial distribution [...] Read more.

This research looks at how spatial factors of public transportation influence the use of bike-sharing in an urban context. Based on a grid-cell-based method, ordinary least square regression and geographically weighted regression (GWR) are developed to reveal the link between the spatial distribution of bus, tram, rail stops, and bike-sharing trips. The public transportation coverage in Budapest City is rated as excellent, with all parts of the city covered within a 5 km radius. We find that areas with a high proportion of public transportation stops have a significantly higher number of bike-sharing trips. Bike-sharing trips are concentrated near regional railway stations, the central business district, and surrounding zones. The connection between bike-sharing and trams/rails appears to be stronger than the connection between bike-sharing and buses. According to the findings, nearly one-third of public transportation stops have accessible bike docks within 125 m walking distance. In GWR analysis, the coefficients of bus stops are increasing towards the center of the city, while the coefficients of tram/rail stops are decreasing. Finally, by examining the priority zones for establishing more bike-sharing facilities, it is discovered that the eastern side of the city requires more development than the western side because it has a high number of bike-sharing trips but no adequate facilities near public transportation facilities. Full article

(This article belongs to the Special Issue Future Mobility and Transport Applications)

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15 pages, 2238 KiB

Open AccessArticle

Consumer Acceptance in Measuring Greece’s Readiness for Transport Automation

by Evangelia Gaitanidou and Evangelos Bekiaris

Future Transp. 2022, 2(3), 644-658; https://doi.org/10.3390/futuretransp2030035 - 19 Jul 2022

Viewed by 1544

Abstract

Transport automation is a reality that is quite rapidly penetrating our lives. Relevant technologies are there, continuously evolving and improving their performance, while countries all over the world are already adopting policy and legislation measures to appropriately introduce their deployment. What is however [...] Read more.

Transport automation is a reality that is quite rapidly penetrating our lives. Relevant technologies are there, continuously evolving and improving their performance, while countries all over the world are already adopting policy and legislation measures to appropriately introduce their deployment. What is however of major interest is how people and societies as a whole welcome this revolutionary transformation. To measure the preparedness of countries towards autonomous mobility, KPMG has been releasing reports, calculating the Autonomous Vehicles Readiness Index since 2017, thus investigating countries’ level of readiness. In this paper we present the calculations with focus on Consumer Acceptance Pillar for Greece, placing it among the rest of the countries considered. The results show that Greece is still low in the ratings, indicating that, although primary steps have been undertaken, still significant work needs to be carried out in terms of legislation, technological development, infrastructure, testing, awareness and training to foster public acceptance in Greece. Full article

(This article belongs to the Special Issue Future Mobility and Transport Applications)

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15 pages, 670 KiB

Open AccessArticle

Business Model Analysis of Smart City Logistics Solutions Using the Business Model Canvas: The Case of an On-Demand Warehousing E-Marketplace

by Leonidas Parodos, Orestis Tsolakis, George Tsoukos, Elpida Xenou and Georgia Ayfantopoulou

Future Transp. 2022, 2(2), 467-481; https://doi.org/10.3390/futuretransp2020026 - 19 May 2022

Cited by 4 | Viewed by 3017

Abstract

The rapid rise of e-commerce and advances in the technological sector have enabled the emergence of modern business models on e-marketplaces. Digital and on-demand e-marketplaces have become increasingly popular, responding to the trend of the sharing economy in various business sectors, but there [...] Read more.

The rapid rise of e-commerce and advances in the technological sector have enabled the emergence of modern business models on e-marketplaces. Digital and on-demand e-marketplaces have become increasingly popular, responding to the trend of the sharing economy in various business sectors, but there is little guidance on how to develop the respective business models in order to ensure the long-term sustainability of such companies. The present paper is based upon the development and operation of an innovative on-demand warehousing e-marketplace in Greece as a one stop-shop for on-demand warehousing services. The purpose of this paper is to identify the necessary components for developing a successful innovative business model for a viable and effective on-demand warehousing platform. The identification of the value proposition of the proposed e-marketplace, the necessary business infrastructure and the customer interface are described, analyzed and adapted to the Greek Market. Furthermore, this paper also describes the cost structure and the revenue streams of the proposed on-demand warehousing e-marketplace. Full article

(This article belongs to the Special Issue Future Mobility and Transport Applications)

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14 pages, 2522 KiB

Open AccessArticle

Methodology for Consequence Analysis of Future Mobility Scenarios: The SPROUT Framework

by Elpida Xenou, Georgia Ayfantopoulou, Beatriz Royo, Sara Tori and Marco Mazzarino

Future Transp. 2022, 2(2), 453-466; https://doi.org/10.3390/futuretransp2020025 - 18 May 2022

Cited by 2 | Viewed by 1958

Abstract

The various social, political, environmental, and economical mega-trends together with the rapid rise of digitalization are shaping cities worldwide including the way that citizens and products move within the urban environment. New mobility services are popping up which are showing the path toward [...] Read more.

The various social, political, environmental, and economical mega-trends together with the rapid rise of digitalization are shaping cities worldwide including the way that citizens and products move within the urban environment. New mobility services are popping up which are showing the path toward more on-demand and personalized mobility patterns. The transformation of the urban mobility environment though constitutes a great challenge for policy-makers, as little is known about the impact of these trends on the city’s current mobility environment while the assessment of the future state of a mobility system can be considered a quite complex process taken its multi-parametric and multi-dimensional nature. This paper aims to simplify this process by presenting a coherent multi-actor consequence analysis framework as a tool for assessing future mobility scenarios which was developed in the framework of the H2020 SPROUT. This paper presents in detail the main components of this framework together with the list of key performance indicators used for assessing the performance in terms of sustainability of future mobility scenarios as well as indicative results from its use by the city of Padua. Full article

(This article belongs to the Special Issue Future Mobility and Transport Applications)

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Review

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16 pages, 741 KiB

Open AccessReview

The State of the Art of Cooperative and Connected Autonomous Vehicles from the Future Mobility Management Perspective: A Systematic Review

by Md. Saniul Alam and Panagiotis Georgakis

Future Transp. 2022, 2(3), 589-604; https://doi.org/10.3390/futuretransp2030032 - 05 Jul 2022

Cited by 6 | Viewed by 2303

Abstract

Cooperative and connected autonomous vehicles (CCAVs) are considered to be a promising solution for addressing congestion and other operational deficiencies, as part of a holistic future mobility management framework. As a result, a significant number of studies have recently been published on this [...] Read more.

Cooperative and connected autonomous vehicles (CCAVs) are considered to be a promising solution for addressing congestion and other operational deficiencies, as part of a holistic future mobility management framework. As a result, a significant number of studies have recently been published on this topic. From the perspective of future mobility management, this review paper discusses three themes, which are traffic management, network performance, and mobility management, including congestion, and incident detection using the PRISMA methodology. Three databases were considered for this study, and peer-reviewed primary studies were selected that were published within the last 10 years in the English language, focusing on CCAV in the context of the future transportation and mobility management perspective. For synthesis and interpretation, like-for-like comparisons were made among studies; it was found that extensive research-supported information is required to ensure a smooth transition from conventional vehicles to the CCAVs regime, to achieve the projected traffic and environmental benefits. Research investigations are ongoing to optimize these benefits and associated goals via the setting of different models and simulations. The tools and technologies for the testing and simulation of CCAV were found to have limited capacity. Following the review of the current state-of-the-art, recommendations for future research have been discussed. The most notable is the need for large-scale simulations to understand the impact of CCAVs beyond corridor-based and small-scale networks, the need for understanding the interactions between the drivers of CCAVs and traffic management centers, and the need to assess the technological transition, as far as infrastructure systems are concerned, that is necessary for the progressive penetration of CCAVs into traffic streams. Full article

(This article belongs to the Special Issue Future Mobility and Transport Applications)

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