Evaluating sustainability and land use integration of BRT stations via extended node place model,an application on BRT stations of Tehran

Modern transportation planners and urban designers are looking for a practical solution toward sustainable, accessible, and cost-effective development of public transportation. Achieving a well-balanced transit-oriented development (TOD) requires a clear illustration of the existing public transportation, land use, and correlations between them. Bus rapid transit (BRT) is a well-known strategy toward developing high-quality transit networks and would be a reasonable transportation choice if allied with a suitable walkable design in surrounding areas. In this paper, the node-place model is developed and applied on BRT stations in Tehran to be analyzed and clustered using three extended TOD indicators. The design index, representing the accessibility and walking potential, is further improved by measuring spatial specifications and walkway density parameters. Furthermore, the place index, representing demand and land use specifications of the area, is investigated through the calculation of possible destination points (PDPs) in the vicinity of stations. The model is reapplied after correlation analyses on input data to find stations' behavior by using more effective parameters. The results indicate that appropriate access to the stations requires a tight network of walkways that offers multiple routes to the stations. Meanwhile, a dense and sophisticated pedestrian area needs to offer short routes with minimum turns required to reach the station. Moreover, in each station, some factors are found to be more dominating. Changes in these factors have more profound effects than other factors. This paper aims to identify these factors and help planners develop TOD areas sustainably.     

Walkability assessment for urban areas around railway stations along the Rhine-Alpine Corridor

Walking may be the primary mode to access a railway station, yet the walkability around stations has not been well researched. This paper explores methodologies for assessing walkability in urban areas in close proximity to a railway station. To address both the objective environmental characteristics and subjective aspects of walking, walkability indicators were developed with reference to four key criteria: urban form; design of the street; obstacles and traffic safety; and personal perception. Researchers conducted field observations of the urban neighbourhood within a radius of 800 m from selected railway stations. Subsequently, the concept of Walk Score® has been applied to cross-check research findings from the field observations and we have developed an adapted version of ‘Walk Score’ including traffic noise, pedestrian casualties, road speed limits and air quality. This is a point deduction system of traffic related obstacles from the original Walk Score® which evaluated walkability based on the distance to selected urban amenities. Research reported in this paper forms part of an EU funded project, which compared the accessibility of six railway stations in Germany, Italy and the Netherlands along the Rhine-Alpine Corridor. Using three German case studies, this paper presents key results and discusses the validity and limitation of the methodology.     

A methodology for evaluating transit service quality based on subjective and objective measures from the passenger’s point of view

In this paper a methodology for measuring transit service quality is proposed. The methodology is based on the use of both passenger perceptions and transit agency performance measures involving the main aspects characterizing a transit service. The combination of these two types of service quality measurement fulfils the need to provide a reliable as possible measurement tool of the transit performance. Considering passenger perceptions is fundamental because the customer's point of view is very relevant for evaluating the performance of a transit service. At the same time, the use of a more objective measurement provided by the transit agency can be a useful solution for obtaining a more comprehensive service quality measurement. The proposed procedure is applied to a real case study of a suburban bus line; a series of subjective and objective indicators are calculated on the basis of users’ perception about the service and measurements provided by the transit agency.     

Walking to transit: An unexpected source of physical activity

Using data from a regional survey carried out in Montreal, this paper shows empirical evidence that modal shift from car to transit contributes to the volume of daily physical activity. First, the paper presents a method to calculate the walking distance related to transit trips, and a totally disaggregate trip assignment model. The walking distance involved in every transit trip is then associated to the individuals' characteristics to estimate the number of steps made by the population in the whole transit system.Results show that, in average, a transit trip involves 1250 steps, required to access and egress the network as well as to transfer between routes or modes. Thus, a round trip represents 2500 steps, which account for 25% of the recommended volume of physical activity per day. Hence, analysis shows that the volume of walking varies according to attributes of the traveler (general decrease with age, higher for men) and of the trip (study and work trip involve more steps, the use of train generates more steps). A regression model confirms that these variables significantly affect the number of steps involved in transit trips. Such positive outcome, for the traveler himself, is an innovative argument to promote the use of transit that is also aligned with current sustainable transportation goals.     

Auditing street walkability and associated social inequalities for planning implications

Transport planning is gradually shifting targets towards modifying the pedestrian streetscapes that favor walking and enhance urban sustainability. We cannot be optimistic about walkability on condition that walkable streets are not evenly distributed within urban settings. Auditing the street walkability and associated social inequalities in developing countries should provide critical implications for transport planning. This paper identifies the most common indicators in existing indicator classification frameworks based on word frequency; and then establishes an indicator classification system (connectivity, accessibility, suitability, serviceability, and perceptibility) through expert panel evaluation for auditing street walkability in China. Using a case of Hangzhou metropolitan area, a set of 13 indicators are first selected by referring to the established indicator classification system and then aggregated into an integrated walkability index (IWI) through the catastrophe theory (CT) model after appropriate data treatment (standardization, normalization and correlation calculation). Camera signaling data are employed to validate the developed IWI. Results show that IWI is efficient to audit street walkability. IWI presents great heterogeneity at segment level. In general, higher walkability is observed in streets across the central and western areas. Walkability profiles of the segments are further produced by the clustering approach and the categorized groups can inform more targeted planning options. Spatial regression is finally utilized to quantify the associations between community socio-demographics and neighborhood IWI at two levels. We discover that lower neighborhood walkability would be observed in socioeconomically disadvantaged communities. These results suggest that significant social inequalities in street walkability should exist across the communities within Hangzhou metropolitan area. The developed IWI not only brings a standardized measurement of street walkability in the field of transport planning, but also paves the way for addressing the social inequalities in street design across various jurisdictions.     

Residential dissonance and walking for transport

The concept of residential dissonance contextualizes the combined impact of built environment and individual travel and land-use preferences on travel behavior. A limited number of studies have explored the effect of residential dissonance specifically on walking. However, evidence from the active travel literature suggests that the environmental characteristics associated with diverse active travel modes differ to some extent. This study addresses residential dissonance in a framework specific for walking outcomes, as the applied neighborhood boundaries, residential preferences and the observed built environment were operationalized with measures related to walking for transport. SoftGIS, a public participatory GIS method allowing the mapping of frequently visited destinations was used to survey the daily walking behavior of 772 respondents aged 25–40 years living in the Helsinki metropolitan area, Finland. Ordinal logistic regression analyses were used to assess the adjusted odds of walking a high share of estimated monthly trips and travel distance. The identified residential dissonance groups were found to have significant associations with the walking outcomes. Associations between the observed neighborhood walkability and the walking outcomes varied by trip purpose, being more consistent with walking to utilitarian than to recreational destinations. Overall, the results support views on the interconnectedness of individual attitudes and the built environment in facilitating walking for transport.     

Neighborhood walking densities: A multivariate analysis in Halifax,Canada

Neighborhood walkability is important to planners and policy makers in the public health, land use planning, and transportation fields. This research contributes to knowledge of walking behaviour by aggregating GPS-tracked walking trips as neighborhood walking densities, and investigating local characteristics affecting those densities. The study maps walking trips in urban and suburban neighborhoods of Halifax, Canada, using data from the Space-Time Activity Research (STAR) survey conducted in 2007–2008. Respondents completed a two-day time-diary, and their movements were tracked using a GPS data logger. The 1971 primary respondents recorded 5005 geo-referenced walking trips.From mapped walking tracks, walking distances were aggregated to 87 census tracts, and expressed as walking densities (per resident, per meter of road, and per developed area). Multivariate regression was used to examine which neighborhood variables and socio-demographic controls are most useful as estimators of walking densities. Contrary to much of the walkability literature, built-environment measures of road connectivity and dwelling density were found to have little estimating power. Rather, retail lot coverage ratio was the single most useful estimator, acting as a proxy to identify traditional retail shopping streets. Office and institutional land uses were also important contributory estimators (highlighting areas of dense employment), as were measures of residents' income and age.     

Exploring the impacts of land use by service coverage and station-level accessibility on rail transit ridership

In this study, we employ spatial regression analysis to empirically investigate the impacts of land use, rail service coverage, and rail station accessibility on rail transit ridership in the city of Seoul and the surrounding metropolitan region. Our analyses suggest that a rail transit service coverage boundary of 500 m provides the best fit for estimating rail transit ridership levels. With regard to land use, our results confirm that density is positively related to rail transit ridership within a 750 m radius of each station. In contrast, land use diversity is not associated with rail transit ridership. We also found that station-level accessibility is as important as land use for explaining rail transit ridership levels. Finally, we conclude that development density and station-level accessibility measures such as the number of station entrances or exits and the number of bus routes at the station are the most important and consistent factors for promoting rail transit ridership.     

Public bicycle as a feeder mode to rail transit in China: The role of gender,age, income,trip purpose,and bicycle theft experience

A marriage between public bicycle and rail transit presents new opportunities for sustainable transportation in Chinese cities. To examine determinants of public bicycle usage for rail transit access, an intercept survey of feeder mode choice among rail transit users was conducted near rail stations in Nanjing, China. Mode choice models were estimated with five feeder mode alternatives, including car, bus, walk, private bike, and public bike. By differentiating between public and private bicycle modes in the mode choice models, the study reveals the effects of personal demographics, trip characteristics, and station environments on public bicycle usage for rail transit access. Results show that female, older, and low-income rail commuters are less likely to use public bicycle to access rail transit. Rail commuters with bicycle theft experience and making school- or work-related trips are more likely to use public bicycle to access rail transit. Land use variables are largely insignificant in this study except that density shows a positive relationship with walking to rail transit. The results on demographic differences raise equity concerns when it comes to investing in public bicycle systems. Policy implications are discussed for Chinese cities to equitably boost public bicycle integration with rail transit.     

Light rail development with or without gentrification?: Neighborhood perspectives on changing sense of place in Denver,Colorado

The growing and continued popularity of light rail transit systems in major United States metropolitan areas is leading to growing research on land use impacts, value generation, and contributions to gentrification. While various studies explore the fiscal and environmental influences of light rail transit development in the Denver Metropolitan Area, only recently have scholars turned their attention to gentrification and social influences. This paper analyzes how one station shapes residents' sense of place, providing more nuanced understandings of the role light rail and transit-oriented development affects perceptions of neighborhood character and place attachment. We argue that gentrification can be measured and understood not only quantitatively, but also by how people feel light rail influences their attachment to place. Residents within half a mile of the Evans Light Rail Station were randomly and anonymously surveyed with a series of demographic questions and asked to provide their experiences, observations, and opinions. With 166 household responses, we examine residents' perceptions of Evans Station and sense of place to investigate relationships between factors such as race, age, income, education, length of residency, and walking distance from the light rail station. Analysis of their responses creates a more nuanced understanding of the ways that light rail contributes to positive, neutral, and negative emotions associated with gentrification ranging from appreciation of increased accessibility, younger residents, increased property values, and new commercial development to complaints about increased density, higher rents, traffic, noise, and loss of community.     

Using PAR to frame sustainable transport and social justice on policy agendas. A pilot experience in two contrasting Chilean cities

If sustainable transport is defined by emissions and energy, urban passenger transport in Chile could be considered “sustainable”, with two-thirds of trips made by walking, cycling or public transit. Recent studies, however, reveal that gender and equity issues are highly problematic, pointing to tensions between environmental and social sustainability.Given these tensions, a university-community collaboration, the Laboratory for Social Change, developed a pilot methodology to define and evaluate Transport Justice. We sought a relatively simple instrument, a Transport Justice report (Balance de Transporte Justo, BTJ) that could combine experiential and academic knowledge and thereby influence policy and decision-making more effectively.We used a participatory action research (PAR) approach to bring together community leaders and university researchers, and consider experiential and research data, through this “transport justice” lens. To start, we introduced the idea of “transport justice” with researchers in different disciplines and citizen organizations involved in relatively specific battles: fighting a highway, for better cycling facilities, or for reduced road speeds, for example.We focused on established issues, such as universal access, walkability, cycle-inclusion, but added children's freedom and autonomy, the wise city (older adults, heritage, identity), care and land use, and transport impacts on ecological services. Building on this collaboration, we also applied a transport justice survey in two contrasting Chilean cities, Santiago and Temuco.Our analysis reveals that, despite a planning system that favours high-income households whose members rely mainly on cars, the majority of pedestrians, cyclists, public transit and even car users would prefer a redistribution of road space and investment in favour of active transport. During the next phase of research (2020–2021), we will test how well these results are taken up by citizen organizations, politicians and senior government staff from all parties. This will allow us to evaluate its effectiveness as a policy and power distributing instrument.     

Thinking regional and acting local: Assessing the joint influence of local and regional accessibility on commute mode in Montreal,Canada

Accessibility indicators, measuring the ease of reaching destinations via a specific mode of transport, are increasingly used in planning and research as they support integrated land use and transport planning. Research has shown that increased local accessibility (walkability for example) is associated with an increase in walking mode share, whereas increase in public transport accessibility is associated with a greater use of public transport. Yet, while public transport agencies are promoting the combination of active and public transport options to address one's diverse mobility needs, local and regional accessibility are rarely addressed together in research or practice. This research aims to determine the joint influence of local and regional accessibility on the transport mode used for work trips in the Montreal metropolitan region, while controlling for socio-demographic characteristics. Data come from the 2013 Origin-Destination survey 2016 Canadian census, 2017 public transport data DMTI Enhanced points of interests. A multinomial logistic model is used to understand how local and regional accessibility are associated with walking, cycling or taking public transport to work across individuals. The results demonstrate that increases in both local and regional accessibility are associated with a higher probability of using sustainable modes. The predicted probabilities suggest that local accessibility is more closely associated with a decrease in car use. This study sheds light on the interaction between local and regional land use and transport systems and is of relevance to planners and policymakers wishing to develop neighborhoods that support the use of sustainable modes.     

An investigation of the attributes of walkable environments from the perspective of seniors in Montreal

The objective of this paper is to investigate the attributes of walkable environments from the perspective of seniors in the Island of Montreal in Quebec, Canada. The research is based on a combination of statistical analysis of travel diary data and field work to conduct walkability audits. The approach follows a sequence of logical steps. The first step involves the estimation of a travel behavior model walking by seniors (people 65 years or older). The results of this model, in combination with cluster analysis, are used to identify sites where the model systematically under- or over-predicts walking. Subsequently, sites are targeted for walkability audits. It then becomes possible to assess the presence or absence of attributes of built environments where walking is more or less common than other factors would predict. A walkability audit of 403 street segments was used to proof the concept in this paper. The audited items were summarized in contingency tables and tested with the chi-squared test of independence to identify streetscape elements that correlate with walking for transportation.     

A multi-criteria approach of assessing public transport accessibility at a strategic level

This paper presents an approach for accessibility categorization in areas where there is no extensive data available to run the conventional analysis. The presented method has the advantages of the lower data requirements and the utility of the results. Three benchmarks were selected to evaluate transit accessibility. The first one (transit coverage) investigates the spread of the service, and it is used to assess the percentage of people in a district that can access the service within a comfortable access distance. The second (transit supply) is an effectiveness measure of the magnitude of available infrastructures such as stops, or stations over the population or land area of the underlying region. The third (route diversity) represents the variety of routes to and from different areas via transit services. Various indicators were used to assess these benchmarks. Within the context of multi-criteria decision-making, TOPSIS (Technique of Order Preference by Similarity to Ideal Solution) allows the direct comparison of measures of different units, and it is used to evaluate the relative scores of the various districts' benchmark. A K-clustering method was used to numerically categorize the areas into five groups, reflecting on the criteria levels. A case study of Abu Dhabi city is used to demonstrate the details of the procedures. The detailed analyses were used to depict districts and corridors with particular deficiencies and as such suggesting remedy strategies. The method can help transit authorities identifying the most suitable types of facilities, infrastructure, or routes that a district may need to improve its accessibility.     

Should I stay or should I go? A survey analysis of neighborhood change and residential mobility concerns around new light rail stations in Charlotte,NC

In this article, we examine the effects of rail transit investments on residents' stated mobility intentions and perceptions of neighborhood changes using a survey analysis in Charlotte, North Carolina. We ask residents in neighborhoods along a new light rail line about their reasons for residing in their current neighborhood, thoughts about moving and the light rail's effect on their neighborhood. To control for city-wide housing market pressures, responses from one station-adjacent neighborhood are compared to responses from residents in a similar neighborhood elsewhere in the city while controlling for individual characteristics. Using a mixed-methods research approach, we find that while residents attribute some changes in their property values and rents to the light rail, it is only one of many factors affecting their neighborhood. Light rail also does not appear to affect residents' stated propensity to move out of these neighborhoods. Survey respondents' view of the light rail's effect on their neighborhood is also positive, on average. We find that the stated likelihood of moving is not related to the distance to the station nor to how frequently a resident uses the light rail. This article contributes to debates on transit-induced displacement and gentrification and provides context to neighborhood-scale quantitative analyses from residents' perspective.     

Attitudes towards transit-oriented development: Resident experiences and professional perspectives

Transit-oriented development (TOD) provides highly efficient access to transit facilities and, when implemented in concert with streetscape changes, improves neighborhood walkability. In some regions, TOD has generated controversy, seen as impinging on the local populations' preferences for single-family housing, as well as the desire of developers to build that category of housing. In New Jersey, however, there has been increased policy support for TOD. The question addressed here is how, if at all, TOD and TOD-proximate residents' perceptions of the benefits and shortcomings of TOD are perceived and addressed by professionals involved with TOD planning and development. A qualitative research approach was used, with focus groups with residents and structured interviews with professionals. A relatively well-fitting correspondence was found: There was broad agreement by residents and professionals on the value of transit and TOD for increased accessibility and walkability. Problems were identified with retail development and traffic problems; the latter expressed as a congestion problem by professionals but as a pedestrian safety problem by residents. This information provides useful insight for planners and developers seeking to deliver TOD designs that match the preferences of residents and potential residents, and for new avenues of research on how best to achieve this.     

A random utility maximization (RUM) based measure of accessibility to transit: Accurate capturing of the first-mile issue in urban transit

The paper presents a random utility-based measure of accessibility to explain the first-mile issue in urban transit. A discrete access stop/station location choice model is used to calculate the expected maximum utility of transit access choices as the measure of the proposed access to transit measurement approach. It captures the effects of changes in various personal, sociodemographic, transportation and land-use variables on access to urban transit that are overlooked by conventional approaches of accessibility measurements (count-based cumulative opportunities measures and gravity-based measures). The proposed accessibility to transit measurement approach is empirically measured for the Greater Toronto Area and is integrated into an operational tool programmed in a GIS-based traffic assignment software, TransCAD 7.0. This allows comparing it to the conventional measures, and the results reveal that the conventional measures tend to over-estimate access to transit.     

Active-transport walking behavior: destinations,durations, distances

This paper fills a gap in our knowledge of active-transport (AT) walking, by presenting detailed aspects of walking behavior for a medium-sized North American city. It analyzes the frequency and length of walking episodes, categorized by origins, purposes, and destinations, and also investigates distance-decay functions for major destinations. The study employs day-after recall time diary and questionnaire data from the 2007–8 Space–Time Activity Research (STAR) survey conducted in Halifax, Canada. GPS co-ordinate data enhanced the accuracy of location information, start times, and end times of the 1790 AT walking episodes, while GIS software was used to compute a shortest-path distance between the origin and destination of each episode.Home is both the most common origin and destination for AT walks, and the most common purpose is travel-to-shop rather than travel-to-work. Most walks are to non-home locations, such as retail establishments and offices. Particularly important are restaurants and bars, grocery stores, shopping centers, banks, and other services. All major destinations show strong distance-decay effects: most walks are shorter than 600 m, and very few exceed 1200 m. The assumption employed in the walkability literature, that one should restrict the ‘neighborhood of opportunity’ to walking destinations within 1000 m of the home, is seen to be well justified. However, a planning policy focus on the walker’s home neighborhood is revealed as questionable, since the majority of walking trips do not originate from the home. The relationship between urban land-use patterns and walkability may therefore require some rethinking.     

Evaluating the relationship between socially (dis)advantaged neighbourhoods and customer satisfaction of bus service in London,U.K.

Affordable and efficient urban public transport is important for the development of a sustainable urban environment. Making sure public transport users are satisfied with the service is a goal many public transport agencies are trying to achieve. Customer satisfaction surveys are often used to monitor customer perceptions of service quality and to determine the relative influence of service attributes on a customer's overall assessment of the service. This study presents a new method to spatially evaluate customer satisfaction survey data through examining satisfaction with bus service across neighbourhoods of varying levels of socio-economic status (SES). Using customer satisfaction survey data collected by Transport for London between 2010 and 2015, multi-level regression modeling is used to estimate the relationship between overall satisfaction and social deprivation of the area in which bus routes were operating. The results indicate lower levels of satisfaction along routes serving low SES neighbourhoods, which appears to be attributed to (1) low satisfaction with service characteristics related to an individual's experience and quality of the bus and (2) conditions of the bus stop and shelter. Findings from this paper shows the importance of including cleanliness and bus internal quality as one of the performance indicators when contracting bus services, to ensure that all customers receive the same quality of service in the region regardless of their SES.