Search Results (42)

Urban transportation systems face increasing pressure to reduce car dependency and greenhouse gas emissions while supporting sustainable growth. This study addresses the lack of integrated modeling approaches that capture both spatial and temporal dynamics in transport planning. It develops a novel framework combining System Dynamics (SD) and Geographic Information Systems (GIS) to assess the sustainability of Transit-Oriented Development (TOD) strategies and parking policies in two brownfield redevelopment sites in Montreal. The framework embeds spatial metrics, such as proximity to transit, parking availability, and active transportation infrastructure into dynamic feedback loops. Using scenario analysis, the study compares a baseline reflecting current norms with an intervention scenario emphasizing higher density near transit, reduced parking ratios, and improved walkability and bike infrastructure. The results suggest that aligning TOD principles with targeted parking limits and investments in active mobility can substantially reduce car ownership and emissions. While primarily conceptual, the model provides a foundation for location-sensitive, feedback-driven planning tools that support sustainable urban mobility. Full article

Rational parking allocation criteria are critical in addressing urban parking challenges and promoting the sustainable development of urban transportation. It has been common practice to reduce parking allocation for buildings according to the extent of the public transportation accessibility; however, the calculation of reduction coefficients lacks scientific rigor. This research proposes an estimation approach for reduction coefficients of parking allocation according to public transportation accessibility. First, public transportation accessibility is analyzed using Javier Gutiérrez’s weighted-average travel time model, optimizing the existing parking zoning scheme. Second, a multinomial logit model is built based on residents’ trip survey data to assess the cross-elasticity of the public transportation accessibility (travel time) with the probability of car travel. Third, the reduction in the private-car-travel probability is approximated as a parking reduction, and the reduction in the public transportation accessibility is translated to a reduction in the parking allotment, using cross-elasticity as a bridge. Finally, an empirical study is conducted on Nanjing’s central urban area, analyzing the reduction ratios within different parking zones around metro stations within specific distances and the interaction effects of these two scenarios to verify the rationality of the calculated reduction coefficients. According to the study, parking allocation standards in Zones I and II can be reduced by 10.6% and 7.5%, respectively, based on Zone III standards, while parking allocation standards within 100 m, 300 m, and 500 m of metro stations can be reduced by 17%, 12%, and 8%, respectively, based on the original standards. This paper can serve as a reference for the development of parking standard policies for public buildings. Full article

The concepts of sustainable development and later sustainable mobility were used as principal ideas to formulate transport policies for Polish cities since the early 1990s. This paper aims to review the implementation of these policies over the past 30 years. It presents changes and developments in urban transport systems in selected Polish cities, together with shifts in the travel behavior of their residents. A major factor contributing to the increase in car travel is the growing rate of motorization. The current state of urban transport subsystems—including public transport, road networks, parking, and pedestrian and bicycle infrastructure—is examined. Additionally, related issues such as spatial planning, road safety, and air pollution are discussed. Although most city councils have adopted sustainable mobility policies, their implementation remains unsatisfactory. The paper concludes with insights from nearly three decades of experience, highlighting obstacles that hinder the achievement of intended goals, such as the lack of national legislation and guidance on sustainable urban mobility planning and limited political backing. However, two recently adopted national strategic documents offer hope for progress in addressing sustainable mobility challenges. Full article

Considerable interest has been shown in decreasing car use through planning and policy-making efforts. However, little is known about the interactive effects of built environment (BE) and parking policy on car use, and it is unclear whether and how these effects differ across trip purposes. We conducted a web-based survey in Beijing and collected data from 1036 respondents, including 517 male and 519 female respondents. This study estimates the interactive effects of BE and parking policy on car use for home-based work and non-work trips by employing multilevel logit models. The results show that BE variables at trip origins and destinations are important for shaping car use for both home-based work and non-work trips. Specifically, land use mixture (Coeff. = −0.121), bus stop density (Coeff. = −0.006), and population density (Coeff. = −0.009) at residential locations are negative factors affecting car use for work trips, whereas distance to local center (Coeff. = 0.012) and distance to the city center (Coeff. = 0.019) at residential locations are positive factors. Land use mixture (Coeff. = −0.323), bus stop density (Coeff. = −0.008), road density (Coeff. = −0.002), and population density (Coeff. = −0.007) at residential locations are negative factors of car use for non-work trips. Among BE factors at destinations, land use mixture (Coeff. = −0.319), bus stop density (Coeff. = −0.015), road density (Coeff. = −0.008), distance to the local center (Coeff. = −0.018), and population density (Coeff. = −0.012) are negative factors for car use for work trips, whereas the negative factors for non-work trips are land use mix (Coeff. = −0. 218), bus stop density (Coeff. = −0.038), road density (Coeff. = −0.003), distance to the city center (Coeff. = −0.121), and population density (Coeff. = −0.009). The effects of BE variables can be strengthened or weakened by free parking and parking convenience. Moreover, the results identify significant differences in the effects between work and non-work trips. These findings inform planners and policymakers of how to coordinate the BE and parking policies to decrease car dependence. Full article

Car-sharing services, which provide short-term vehicle rentals in urban centers, are rapidly expanding globally but also face numerous challenges. A significant challenge is the effective management of fleet selection to meet user expectations. Addressing this challenge, as well as methodological and literature gaps, the objective of this article is to present an original methodology that supports the evaluation of the suitability of vehicle fleets used in car-sharing systems and to identify the vehicle features preferred by users necessary for specific types of travel. The proposed methodology, which incorporates elements of transportation system modeling and concurrent analysis, was tested using a real-world case study involving a car-sharing service operator. The research focused on the commuting needs of car-sharing users for work or educational purposes. The study was conducted for a German car-sharing operator in Berlin. The research was carried out from 1 January to 30 June 2022. The findings indicate that the best vehicles for the respondents are large cars representing classes D or E, equipped with a combustion engine with a power of 63 to 149 kW, at least parking sensors, navigation, hands-free, lane assistant, heated seats, and high safety standards as indicated by Euro NCAP ratings, offered at the lowest possible rental price. The results align with market trends in Germany, which focus on the sale of at least medium-sized vehicles. This suggests a limitation of small cars in car-sharing systems, which were ideologically supposed to be a key fleet in those kinds of services. The developed methodology supports both system operators in verifying whether their fleet meets user needs and urban policymakers in effectively managing policies towards car-sharing services, including fleet composition, pricing regulations, and vehicle equipment standards. This work represents a significant step towards enhancing the efficiency of car-sharing services in the context of smart cities, where personalization and optimizing transport are crucial for sustainable development. Full article

The number of cars in Polish housing estates is steadily increasing. Cars park in allocated parking spaces, but also occupy roads, pavements, and even green spaces. As the European experience shows, many countries have had this problem and have been looking for a solution. Due to the fact that Polish cities are at the beginning of the process, which limits the importance of individual transport, all good practices are a valuable source of information. The purpose of this article is to present the possibility of implementing solutions to limit the number of cars in Polish housing estates based on the experience of the Vauban housing estate in Freiburg, Germany. This housing estate was created with the great participation of the local community and one of its postulates was to reduce the use of cars. The methodology involved several consecutive steps. The first stage of the work was a review of the literature on the subject of low-carbon housing. Vauban was chosen as a model project with a sustainability of 20 years. Design solutions to reduce car traffic were analysed. The data collected were transformed into hard (numerical) and soft (descriptive) data, then systematised and catalogued. Based on these guidelines, a model of an estate with a reduced number of cars was created. The final stage of the research was the implementation of the model. The model formulates the most important aspects related to the location of a car-free housing estate and allows one to indicate its potential location in the city. It is a valuable tool for opening up a broad discussion on urban planning, location, and the future of car-free housing estates. The results of the study should be interpreted at two levels: land use and location. The results of the analyses allowed parameters and guidelines to be defined. These guidelines provide a guideline for the development of car-reduced housing estates in future cities. The second set of conclusions concerns the location of a potential car-reduced housing estate. The area of the potential site is shown using the city of Wroclaw, Poland, as an example. Full article

This study investigated commuting behavior at four technical faculties (BCTF) in Maribor. The main aim was to provide suggestions and solutions for challenges related to active commuting to the BCTF, while promoting advancements in CO₂ emission reduction. The research methodology was based on analyses of a questionnaire survey and calculations of CO₂ emissions. The results indicate that implementing measures to promote walking, bicycling and the use of city and regional public transport, in conjunction with supportive housing and parking policies, has the potential to eliminate car trips within 0–1 km of the BCTF and reduce car trips from other zones in favor of active commuting by 30% to 50%. These proposed transport scenarios could lead to an annual reduction in CO₂ emissions ranging from 17% to 29%. The greatest potential for CO₂ savings is observed within 0–5 km of the BCTF, where a shift to walking and bicycling could reduce emissions by up to 44%. The results also highlighted a notable disparity, indicating that students with term-time accommodations emitted 3.5 times and 4.1 times less annual CO₂ within 0–5 km of the BCTF compared to students and staff commuting daily from their permanent residences in the city. Full article

The adoption of fully battery-powered electric vehicles (EVs) in Kuwait is currently at less than one percent of the population, and hence Kuwait has the lowest index rank among countries around the globe. Effectively, only Kuwaiti nationals have the opportunity to own EVs, as there are no fast direct-current charging stations in Kuwait, and Kuwaiti landlords (expats cannot own real estate) do not allow the installation of EV-charging home wall boxes at their rented properties. Given these facts, this paper only focuses on the preferences of Kuwaiti nationals, even though they only constitute 25 percent of the population of Kuwait. To accomplish the present objectives, a quantitative descriptive method (closed-ended questions) was used to collect data from a sample of 227 Kuwaiti nationals who were representative of the owners of half a million internal combustion engine (ICE) cars and that were categorized as early majority consumers. The findings of the present study indicate that over 50 percent of the respondents would prefer to buy an EV in the following three years when certain criteria were satisfied, including government-controlled pricing policies and recharging point availability, high-speed roads, and free EV-dedicated parking spaces. Furthermore, over 40 percent of respondents stated that they would contemplate purchasing an electric vehicle if the price of gasoline or diesel increased by 19 to 50 percent. The findings also indicated that more than 40 percent of respondents believed that EVs are fire- and crash-safe, and roughly 50 percent of the respondents would be willing to pay between 6 and 20% more for an EV because they believe that EVs are ecofriendlier vehicles and are significantly faster than conventional petrol vehicles. Additionally, respondents rewarded those vehicles with an excellent mark because of their ecological, economical, and technological attributes and benefits. Full article

Urban transportation systems encounter distinctive challenges during planned major city events characterized by large gatherings that disrupt traffic patterns. The surge in private car usage for attending such events leads to a sudden increase in traffic, unauthorized parking, pollutant emissions, and risks to pedestrian safety in the vicinity of the event venue. This study delves into the challenges and advantages of employing Decision Support Systems (DSSs) to manage urban mobility during special urban events with the goal of reducing car dependency and promoting sustainable transportation options. The proposed methodology for designing and testing the DSS is based on the living lab principles of co-planning, co-implementing, co-monitoring, co-validating, and co-reviewing with engaged stakeholders. Moreover, testing of the DSS measures in real-world cases (i.e., during a football match at the San Siro Stadium and a concert at the Alcatraz music hall in the city of Milan, Italy) highlights the potential of the DSS in reducing the use of individual private cars in favor of shared mobility and micro-mobility solutions. As a result, the living lab has proven to be a valuable tool for interacting with stakeholders from the outset of brainstorming ideas for potential transport policies to their practical implementation, with the goal of bridging the gap between what decision-makers believe should be done, what transport operators can feasibly do, and what users desire and expect to be done. The insights presented in this paper contribute to the debate on leveraging technology to cultivate more efficient, resilient, and livable urban environments. Full article

Low-emission zones (LEZs), incentivizing electric cars, park-and-ride systems, and other traffic reduction schemes, are all single measures aimed at achieving low-/zero-emission mobility. This paper aims to investigate the impact of LEZs’ passenger car banning and argues that such single measures cannot achieve significant traffic or emission reduction levels without being integrated into a well-designed policy package that ensures the sufficient provision of mobility alternatives. Featuring Rotterdam as a single case study, this paper follows a mixed methodology consisting of (1) quantitative real-time data on transport usage that mirror the users’ behavior and (2) qualitative data acquired from in-depth interviews and documents that explain the government’s intention and the users’ behavior. The results show that between 2016 and 2020, after applying the LEZ policy for restricting passenger cars and vans of Euro 3 and lower, there was a 50% decrease in the number of polluting passenger cars and vans entering Rotterdam. However, this decrease is insignificant, since the number of vehicles targeted by the policy was less than 2% of the overall vehicles that entered the LEZ area. The results also shed light on the role of systematic policy packaging in ensuring a change in user behavior. Among other initiatives, a successful LEZ implantation should be supported by inner-city parking reduction, electric vehicle charging facilities, incentive schemes, and alternative sustainable mobility options. Above all, the number of restricted vehicles must be significant. The conclusion and discussion develop a well-structured, educational, evaluative framework and recommend a comprehensive package of policy measures for cities seeking low-emission mobility. The research, however, did not consider the impact of different land-use distributions on the application of the LEZ, which can be an interesting angle for future researchers. Full article

Rapid urbanization causes severe parking problems in developing cities. Parking policies cannot be strictly applied in some cases because of varying claims by developers. The variables such as household density, car ownership, and availability of public transport, and the new challenges such as sustainability, climate change, and sustainable mobility still remain insignificant in parking policies. The appropriate parking policies are immediately needed; however, the question is “which policy is appropriate for which city?” In this study, the evolution of residential parking policies is analyzed through the policy analysis process and parking survey methods. In conclusion, maintaining the status quo and not monitoring the applied policy results during the peak period of urbanization caused an irreversible spillover problem. In particular, some exemptions, such as the derogation payment and lack of public district parking lots, increased the pressure on the on-street parking capacity and sustainability of streets. A case study parking survey in a large-city center shows that parking demand is exceeding the capacity by 166% for average daily occupancy on weekdays and 111% on weekends in 2022, compared to 61% in 2015. Five policy alternatives are developed and the “zone parking policy” is concluded to be the most appropriate one for districts while the “mobility level of zones” needs more action at the city level. Full article

Walking is the most sustainable means of daily travel for short trip distances and is a key component of the overall transport system. This paper documents variation in walking rates among countries, cities in the same country, and in different parts of the same city. Our international analysis of official government statistics shows that walking rates are highest for short trips, higher for women than for men, decline with increasing income, and remain constant as age increases. Walking fatality rates are much higher in the USA compared with the other countries we examined, both per capita and per km walked. Government policies that would increase walking rates while improving pedestrian safety include: integrated networks of safe and convenient walking infrastructure; roadways and intersections designed for the needs of pedestrians; land-use regulations that encourage mixed uses and short trip distances; lower city-wide speed limits and traffic calming in residential neighborhoods; reduced supply and increased price of parking; traffic laws that give priority to pedestrians; improved traffic education for motorists and non-motorists; tax surcharges on large personal vehicles; and strict enforcement of laws against drink and distracted driving. Five decades of success with these policies in many European cities provide practical examples for car-oriented cities to follow, especially in North America. Full article

Shared e-scooters were introduced in urban public spaces as a way to promote a modal shift from cars in short-distance trips, as well as to improve sustainability, resilience, and equity in urban transport. However, the expansion of shared e-scooter services in 2019 proved that this mode of transport, without integrated planning strategies, can bring some problems to cities, which are related to the illegal parking of e-scooters, an increase in head injuries, and the lack of population diversity among users. Regarding the latest, this research work aims at conducting a case study in the city of Braga, Portugal to reveal who the actual and potential users of shared e-scooters are and how their socioeconomic profile (e.g., gender, age, income range, literacy, occupation) and usage patterns related to the ones found in other cities. For this, a revealed preference survey was deployed on the case study site, and the respondents’ profiles were statistically correlated with the socioeconomic characteristics of the city’s general population in order to assess if this mode of transport provides an equitable service. Results show that shared e-scooters are not equally used by people of different genders, ages, and income ranges. Information on e-scooter usage inequalities across the population is useful for the city to proceed with more socially equitable mobility policies. Full article

The background of this study is relevant to parking facilities at shopping malls in the Kingdom of Saudi Arabia (KSA), where all parking services are mostly free, with very few exceptions. Demand on parking places at shopping malls and recreational areas in Saudi cities are generally very high. This is partly because most of the entertaining, shopping, and recreational areas are indoors and are typically located at shopping malls with huge parking provision. With the vast increase in car ownership and use in the country over the past few decades, a consequent increase in demand on roads and parking facilities has been observed, which has no doubt resulted in further congestion. This study aims to investigate the willingness to pay to save time searching for a parking place at shopping malls in Riyadh city in the KSA. The methodology includes interviewing shoppers in shopping mall car parks and asking about their search time for a parking space and their willingness to pay to save search time, as well as to report on their socio-economic characteristics including age, gender, employment, education, car ownership, and income. The outcome of this study shows that on average, shoppers spend about 9 min searching for a parking place for their shopping and recreational trips. The results also show that, on average, shoppers reported that they go shopping, eating out, etc., about three times per week, and the average willingness to pay to save time searching for parking space is about 10 Saudi Riyal (about 2.7 USD) per visit. The modelling results show that there is a higher willingness to pay from the middle income and car-ownership categories of the population than from the highest income and car ownership groups. This might reflect the fact that the middle-income groups are much more dependent on themselves to drive their cars and search for a parking space every time, while those of higher incomes could possibly rely on their private drivers most of the times to drive them and park their cars. This paper contributes to the literature by providing a first understanding on how demand for parking facilities is affected by various socio-economic factors and the willingness to pay to save search time at these parking locations. The implications of the outcome of this research will be of use for decision makers and city authorities in planning travel demand management policies and programs that aim at reducing demand on private cars and achieving sustainability. Full article

With climate change and inequities, this study assessed the willingness of affordable-housing and middle-income residents to buy an electric vehicle (EV) if they had a charging station at their home, the likelihood of buying an EV in 2 years, ideal charger locations, and payment preferences for installation. The new Green Books revealed charger opportunities. Volunteers completed paper surveys in Brookline, MA, in an affordable housing complex (n = 37) and a middle-income neighborhood (n = 128) (Total n = 165). Brookline is unique because drivers cannot leave their cars curbside overnight, and local historic districts (LHDs) require aesthetic charger-installations. Descriptive statistics (yes + likely) revealed that affordable housing (70%) and middle-income (65%) respondents would lease or buy a secondhand EV if they had a charging station where they park their car at their home. Affordable housing (43%) and middle-income (38%) respondents were more neutral about buying an EV in the next 2 years. The preferred charger location was the side of the house (44%) or a post by the driveway (38%). Preferred cost-for-installation included government reimbursement (47%) and tax deduction (41%). Data analysis combined affordable housing and middle-income responses and showed no significant differences for gender, significant differences for individuals 76 years and older, and minor differences for income. To inform individuals in the pre-contemplation phase, Black-owned businesses in the new Green Books could seek government funding for off-road chargers. While EV technology will improve, land is limited, so chargers should not displace climate-responsive bicyclists in curbside protected bike lanes. Following this study, governments and academics could pilot full funding of home charger installations to involve affordable housing and middle-income residents in this climate change solution, study details of these adopters, and develop worldwide policies to lessen greenhouse gas emissions. Full article