Environmental determinants of cycling: Not seeing the forest for the trees?

In recent years, the volume of studies in the fields of transport and urban planning seeking to identify environmental determinants or correlates of cycling has expanded dramatically. This viewpoint wishes to put forward a provocative argument: namely, that while further research in this area might refine our theoretical understanding of certain issues, it is unlikely to deliver any fundamentally new policy-relevant insights as to what measures need to be taken in order to increase urban cycling rates. At present, the difficulties faced by the vast majority of cities across the world in encouraging cycling are not derived from a lack of theoretical knowledge, but are fundamentally practical and political in nature. From a practical perspective, I argue that we already know enough about what needs to be done in order to encourage cycling in the vast majority of urban contexts. The problem with the seemingly endless proliferation of research on the relationship between cycling and environmental characteristics, I suggest, is that it risks giving the impression that there is some fundamental unresolved uncertainty about what is needed to make a city more cycling-friendly, when this is simply not the case. Instead of focusing on cycling itself, I suggest that exploring the phenomenon of traffic evaporation may be a more fruitful way for researchers to advance the cause of urban cycling.     

Transport mode choice in South East Asia: Investigating the relationship between transport users’ perception and travel behaviour in Johor Bahru,Malaysia

The worldwide increase in private car dependency poses a set of significant environmental, economic and social sustainability challenges that continue to undermine the urban quality of life. Rapid motorisation, particularly in South East Asia (SEA), has emerged as a global concern given the region’s cumulative population, rate of industrialisation, and large-scale urbanisation. Thus, there is a compelling need to enhance our understanding of the underlying dynamics of how people perceive and use transportation such that transport planning is better placed to address the current, unsustainable travel patterns in SEA. Despite this need, there has been relatively limited SEA-based research that has endeavoured to examine travel perceptions and transport mode choice from a non-instrumental perspective. This research redresses this deficit by investigating the relationship between transport users’ perceptions and travel behaviours within SEA, with a particular focus on psychosocial drivers of transport mode choice interfaced with more traditional instrumental measures.Spatially stratified survey data have been collected in a case study area, Johor Bahru, Malaysia, comprising users from different transport user groups. Employing regression modelling, drivers of individual’s travel behaviour are examined. Results highlight the merit in recognising the role of non-instrumental motives alongside instrumental motives to explain transport mode choice. We conclude by highlighting that transport mode choices are motivated by a range of locational, socio-demographic, psychological and cultural determinants. The current research has contributed to a better understanding of transport mode choice in Johor Bahru and provides a foundation for future SEA-based travel behaviour research. Studies in this area can inform more sustainable travel behaviour in the SEA region.     

An explanation of the relationship between adults’ work trip mode and children’s school trip mode through the Heckman approach

Most studies on children’s travel hypothesize that the characteristics of children, households, schools, and neighborhoods exogenously affect their travel mode to school. This study makes an additional assumption that children’s mode to school and household adults’ travel mode to work are interrelated because of a lifestyle choice made by parents and caregivers. With this assumption, Heckman probit models were used with data from the 2009 US National Household Travel Survey to predict household adults’ travel mode to work and children’s travel mode to school jointly. It found strong evidence that household adults’ decision to drive to work significantly increases the probability of children being dropped off at school and decreases their likelihood of walking and bicycling, but not vice versa. As adults’ mode choice is more fundamental in the household decision-making process, the study suggests that children’s mode choice studies should not ignore how parents or caregivers travel to work.     

“Ideal” decision-making processes for transport planning: A comparison between Europe and South East Asia

In a recently completed research project on the decision-making process of sustainable urban transport planning issues for the European Union (EU) – entitled PROSPECTS (Procedures for Recommending Optimal Sustainable Planning of European City Transport Systems) – an “ideal” decision-making process for sustainable transport planning decisions in the European context was identified. A further EU-funded networking project (SPARKLE (Sustainability Planning for Asian Cities making use of Research, Know-How and Lessons from Europe)) considered the relevance of the PROSPECTS process to South East Asia, through seminars and workshops in Thailand, Vietnam, Cambodia and Laos. This paper summarises various conclusions reached in these events. Whilst it was generally found that the basic element of the PROSPECTS approach transferred reasonably well to South East Asia, various key factors require revisions to be made to the approach. The most important of these factors are: differing traditions in planning; different weights in the transport-related objectives, use of only a limited set of potential policy instruments, fast growth rates (in both economic and travel terms); differences in types of vehicle used; and lack of data for use in assessment and modelling. These factors could be addressed in more detail in future research projects.     

Hot or not? The role of cycling in ASEAN megacities: Case studies of Bangkok and Manila

The Association of the Southeast Asian Nations (ASEAN) recognizes the role of nonmotorized transport for sustainable urban development in its policy framework. National and local policymakers in Thailand and The Philippines, two tropical countries without a tradition of urban cycling, are increasingly paying attention to cycling as well. This article aims to assess the current situation and progress in cycling, using Bangkok and Metropolitan Manila as case study cities, and to describe the necessary conditions for advancing the significance of cycling in tropical megacities. This is done by operationalizing the so-called Technological Innovation Systems (TIS) framework, which has been used in transition studies since 2008, however, never for cycling. As such this article also “tests” this framework for its application in sustainable transportation. The two case studies are characterized with regards to the current role of cycling in the mobility system, its infrastructure, governance system, and existing research on the potential and barriers. We find that TIS can readily be applied to our cases, with the analysis showing that elements such as knowledge development, actor networks, e-bike adoption, infrastructure, resource mobilization and legitimation are not well developed; on the other hand, flat terrain, attention for cycling for health and environment, heavy congestion, expansion of public transport, growing bike industry, active university communities, and the emergence of advocacy coalitions, could open up opportunities for increasing its modal share.     

For the young and old alike – An analysis of the determinants of seniors’ satisfaction with the true door-to-door DRT system EcoBus in rural Germany

Mobility and transportation service requirements change with growing age. Also in a car-based society like Germany many seniors need to give up driving the car and are dependent on relatives or public transport. Especially in rural areas, the accessibility of public transport is often limited. Demand responsive transportation has occasionally been proposed by researchers as a viable alternative to stop-, route- and time-based public transportation to address such problems. This case study analyses passenger data from the true DRT system EcoBus to identify distinct drivers of old passengers’ satisfaction compared to other passengers. Contrary to existing literature, older people stated to be even more satisfied with the service then younger travellers did. Moreover, older travellers tend to travel alone, but showed slightly higher satisfaction when travelling in groups. The results suggest that older people might be more open-minded and positive regarding flexible public transport schemes than expected.     

The sky is the limit? The determinants and constraints of European airports commercial revenues

This study investigates the determinants of commercial and retail airport revenues from real estate operations. Aviation revenues per passenger are mainly determined by the national income per capita in the area where the airport is located, the percentage of leisure travelers and the size of the airport. Main drivers of commercial revenues per passenger include the number of passengers passing through the airport, the ratio of commercial to total revenues, national income, the share of domestic and leisure travelers and the number of flights. These results are in line with previous findings of a negative influence of business travelers on commercial revenues per passenger. We also find that a large amount of retail space per passenger is generally associated with lower commercial revenues per square meter confirming decreasing marginal revenue effects. Real estate revenues per passenger are positively associated with national income per capita at airport location, share of intra-EU passengers and percent delayed flights.     

Cycling case closed? A situated response to Samuel Nello-Deakin's “Environmental determinants of cycling: Not seeing the forest for the trees?”

This paper responds to Samuel Nello-Deakin's (2020) recent viewpoint, where he provocatively states that we already know enough of what is necessary to get more people to cycle: taking road space away from motor vehicles and ceding it to cyclists is a simple formula applicable in most cities around the world, provided there is political will. Further research, he claims, is unlikely to deliver new policy insights. This paper cautions against universalising the experiences of European “cycling cities” and suggests that turning to cities of the global South can animate cycling research in promising new directions. Fundamentally, it argues that it is necessary to situate cycling research and proposes worlding cycling research as a strategy to move away from Eurocentric visions of cycling cities. In doing so, it proposes avenues for further enquiry that take seriously the complex political challenges faced by cities of the global South, as well as the particular desires, aspirations and innovations of their inhabitants.     

Traffic congestion and trucking managers’ use of automated routing and scheduling

Using data from a 2001 survey of managers of 700 trucking companies operating in California, we tested competing hypotheses about the relationship between managers’ perceptions of the impact of traffic congestion on their operations and their companies’ adoption of routing and scheduling (R/S) software. Demand for R/S software was found to be influenced directly by the need to re-route drivers, and indirectly by the need, generated by customers’ schedules, to operate during congested periods. We were also able to identify which types of trucking companies are most affected by congestion and which types are more likely to adopt such software.     

Antecedents and outcomes of flight attendants’ job satisfaction

This paper develops and tests a comprehensive model for job satisfaction amongst flight attendants with antecedents and outcomes that are germane in the context of airlines. The antecedents are: jetlag, role overload, emotional exhaustion, personal accomplishment, and depersonalization, and the outcomes are; job performance and service recovery performance. A framework was tested using structural equation modelling. A survey was conducted of flight attendants working in Malaysia found exhaustion and personal accomplishment have a direct effect on job satisfaction; emotional exhaustion and personal accomplishment affect the level of depersonalization; and role overload has a positive relationship.     

Simple living and tourism in times of ‘austerity’

The sharp increase in domestic tourism in the UK in 2009 and 2010 has prompted speculations about an embryonic quest for ‘simpler pleasures’ and greener, less exotic holidays. Absent from these debates is a more thorough reflection about the complex ways through which people negotiate everyday senses of normalcy, simplicity and excess in consumption and travelling. This is important to understand the political, economic, cultural and technological contexts that may facilitate a shift towards simpler, sustainable lifestyles. The paper presents results of fieldwork looking at ways in which tourists negotiate what is normal and excessive in holidaymaking. Data suggest that tourism is a highly valued symbolic aspect of modern life which few people are ready to sacrifice on environmental grounds and which is inextricably entangled with contested notions of accessibility, citizenship, equality and fairness.     

Spatial patterns and temporal dynamics of urban bicycle crashes—A case study from Salzburg (Austria)

Most bicycle crash analyses are designed as explanatory studies. They aim to identify contributing risk factors and calculate risk rates based on – most of the time – highly aggregated statistical data. In contrast to such explanatory study designs, the presented study follows an exploratory approach, focusing on the absolute number of crashes. The aim is to reveal and describe patterns and dynamics of urban bicycle crashes on various spatial scale levels and temporal resolutions through a multi-stage workflow. Spatial units are delineated in the network space and serve as initial units of aggregation. In order to facilitate comparisons among regions and quantify temporal dynamics, a reference value of crash frequency is simulated for each unit of the respective spatial scale level and temporal resolution.For the presented case study, over 3000 geo-coded bicycle crashes in the city of Salzburg (Austria) were analyzed. The data set covers 10 years and comprises all bicycle crashes reported by the police. Distinct spatial and temporal patterns with clusters, seasonal variations, and regional particularities could be revealed. These insights are indicators for urban dynamics in the transport system and allow for further, targeted in-depth analyses and subsequent counter measures. Moreover, the results prove the applicability of the proposed multi-stage workflow and demonstrate the added value of analyses of small aggregates on various scale levels, down to single crashes, and temporal resolutions.     

Integration of HSR and air transport: Understanding passengers’ preferences

Different solutions for the integration of high-speed rail (HSR) and air transport could be implemented, ranging from very basic integration to more sophisticated systems which include ticket and handling integration. A discrete choice experiment is conducted to better understand passengers’ preferences. We estimate a number of flexible choice models, taking into account the existence of systematic and random taste heterogeneity. We obtain a range of willingness-to-pay values for service quality attributes, finding some important results that can be used to infer policy conclusions about the real attractiveness of the Air–HSR integrated alternative. In this respect, we find that schedule coordination which reduces connecting time will be crucial.     

Design and analysis of delivery ‘pipelines’ in truckload trucking

This paper examines a new dispatching alternative for the truckload trucking industry involving the use of delivery ‘pipelines’ with dense flow volumes. Drivers and loads are partitioned into two sets; those that utilize pipelines via a series of ‘dray’ moves and line-hauls, and the remaining set of random over-the-road (OTR) drivers that are dispatched by traditional methods. Alternative methods are presented to determine where delivery pipelines should be located and how they should be operated. The effects of the pipelines on the remaining OTR fleet are also examined. Results indicate that the new dispatching alternative is feasible.     

Assessing the impact of co-branding of island destination and tourism activities on tourists’ reactions

The aim of this study is to examine the status and images of certain islands based on specific tourism activities. A total of 385 valid samples were obtained from tourists at the islands' main transportation facilities. The results are as follows: (1) different island destinations are promoted differently, which significantly affects the perceptions of tourists. (2) Tourists' familiarity with various tourism activities and the rate of participation in these activities vary significantly between the islands; in addition, tourists display greater familiarity with beach/water activities and participate in these activities in higher proportions. (3) Greater consistency in the matching of island destinations with tourism activities helps produce a co-branding effect, which positively affects tourists' perception of these destinations. From a co-branding perspective, this study demonstrates that the empirical market positioning of island destinations must be consistent with the tourism activities that are possible to produce an optimal experience for the tourists. This comparison of different islands explains why the development of island tourism on such locations should involve the provision of information on rankings and tourism activities.     

Influence of bus-based park and ride facilities on users’ car traffic

The rate of provision of bus-based park and ride facilities on the fringes of UK urban areas has grown in recent years. However, there has been a debate about whether the schemes reduce traffic. Research published in 1998 for the UK Government considered eight case studies and was interpreted by some as providing reassurance that park and ride can have traffic-reduction benefits. The present paper offers a new approach to the appraisal of the same eight park and ride schemes, separating the analysis into urban and extra-urban components. The urban-area analysis considers the net result of intercepting cars on the edge of urban areas and running additional dedicated bus services from the car parks. The finding is that traffic was avoided in seven out of eight cases. The analysis of the extra-urban effects of park and ride considers three sources of traffic increase: motorists that are intercepted detouring to reach sites, users switching from public transport services and motorists making additional trips. All are found to be important phenomena, with the total additional traffic generated outside the urban area being greater than that avoided within the urban area in every case study. It is concluded that the main effect of the schemes is traffic redistribution, and that their role within traffic restraint policies is unlikely to be directly one of traffic reduction.     

Concepts and definitions of corridors: evidence from England’s Midlands

This article reports upon some of the findings of the CORRIDESIGN research funded under the INTERREG IIC programme, focusing in particular upon the UK’s West Midlands to London corridor. This corridor can be seen as a complex area of ‘braided’ infrastructure. It reports upon the spatial dynamics of transportation, economic development, urbanisation and institutional functions of that area. The article explores some historic antecedents of corridor development; discusses the perceptions of key stakeholders in the study area; and outlines the key issues and potential policy-making building blocks that were identified. Finally the article reflects upon what the findings suggest about the concept and definition of transnational corridors between major urban agglomerations in north-west Europe. It develops Myrdal’s concepts of ‘spread’ and ‘backwash’, and of the ‘armature’ as applied to the corridor concept.     

Impacts on accessibility of China’s present and future HSR network

Although the construction of China’s high-speed rail (HSR) network only started in 2003, the network is already the largest in the world. This paper analyses the impact of the evolving HSR network on the accessibility by HSR and conventional ground transport of 333 prefecture-level cities and 4 municipalities. This paper employs three indicators of accessibility, and analyses three Scenarios. It shows that the HSR network will bring about substantial improvement in accessibility, and lead to national time–space convergence, but will also increase the inequality of nodal accessibility between eastern, central, and western regions, between cities with different sizes of population (excluding the case of the daily accessibility indicator) and between cities that differ in the shortest distance to HSR stations. The HSR network enlarges internal disparities in each of the regions and the five types of cities. The internal inequality of nodal accessibility in all three Scenarios generally increases from the eastern region via the central region to the western region, as well as from very large cities to small cities, varying inversely with the level of economic development and population size. Spatially, accessibility increases generally conform to the distance decay rule but with minor fluctuations. The 50 cities with the largest increases in accessibility are mostly located 50 km or less away from HSR stations and have populations of over 3 million, with the smaller ones located along HSR lines or around large cities such as Beijing, Shanghai, and Guangzhou. As time progresses, the planned HSR network will result in more balanced development, but regional disparities in accessibility will still be greater than before the construction of the HSR.