Abstract:Urban political ecology (UPE) can contribute important insights to examine traffic congestion, a significant social and environmental problem underexplored in UPE. Specifically, by attending to power relations, the production of urban space, and cultural practices, UPE can help explain why traffic congestions arises and persists but also creates inequalities in terms of environmental impacts and mobility. Based on qualitative research conducted in 2018, the article applies a UPE framework to Bangkok, Thailand… Show more
“…Bangkok, the densely populated capital of a rapidly developing country, represents the epicentre of a national problem of vehicular emissions that degrades atmospheric quality within, above and beyond extended urban regions (Figure 1 (Marks, 2020).…”
Section: Vehicular Emissions Within and Beyond City Boundariesmentioning
confidence: 99%
“…Other alternatives modes of public transportation—mass rail and public boats —are still too limited to significantly reduce car usage. Negative public perceptions about public transport have intensified Bangkok's traffic problem, while creating a burgeoning category of commuters for whom cars have become extensions of their homes (Marks, 2020).…”
Section: Vehicular Emissions Within and Beyond City Boundariesmentioning
confidence: 99%
“…Rather than invest in public transport to bridge this socioeconomic gap and reduce vehicular emissions, the Thai government has instead promoted a national culture of aspirational car ownership that mirrors its own development priorities focused on economic growth at the expense of sustainability considerations. This is evident in media advertisements where cars are portrayed as status symbols (Marks, 2020). Yet car commuting culture has also been facilitated by the low cost of vehicle ownership relative to public transport for those who can afford to pay down‐payments on vehicles.…”
Section: Vehicular Emissions Within and Beyond City Boundariesmentioning
This study develops a transboundary political ecology of air pollution to show how its spatially and socially unequal distribution constitutes a form of slow violence among already marginal sections of society. Recent research on transboundary air pollution in Southeast Asia and globally has mainly focused on the supranational or regional scale of environmental governance without taking into proper account the socially differentiated impacts of these cross‐border flows of environmental harm at lower organisational scales. Air pollution in Thailand, which ranks amongst the worst in the world, generates spill‐over effects across sub‐national borders that disproportionately impact the urban and rural poor. We examine the drivers of the three major sources of air pollution in Thailand: vehicular emissions, agricultural emissions and industrial emissions to direct attention toward the barriers and opportunities for collaborative governance in urban, peri‐urban and rural settings. The article argues that administrative fragmentation and the protection of vested economic interests by Thai business and political elites have compromised transboundary governance of the air while adding to socio‐spatial inequalities and environmental injustices. We recommend legislative reforms centred on cross‐sectoral and cross‐jurisdictional cooperation to provide redress for the slow violence perpetrated against marginal citizens in the governance of air pollution.
“…Bangkok, the densely populated capital of a rapidly developing country, represents the epicentre of a national problem of vehicular emissions that degrades atmospheric quality within, above and beyond extended urban regions (Figure 1 (Marks, 2020).…”
Section: Vehicular Emissions Within and Beyond City Boundariesmentioning
confidence: 99%
“…Other alternatives modes of public transportation—mass rail and public boats—are still too limited to significantly reduce car usage. Negative public perceptions about public transport have intensified Bangkok's traffic problem, while creating a burgeoning category of commuters for whom cars have become extensions of their homes (Marks, 2020).…”
Section: Vehicular Emissions Within and Beyond City Boundariesmentioning
confidence: 99%
“…Rather than invest in public transport to bridge this socioeconomic gap and reduce vehicular emissions, the Thai government has instead promoted a national culture of aspirational car ownership that mirrors its own development priorities focused on economic growth at the expense of sustainability considerations. This is evident in media advertisements where cars are portrayed as status symbols (Marks, 2020). Yet car commuting culture has also been facilitated by the low cost of vehicle ownership relative to public transport for those who can afford to pay down‐payments on vehicles.…”
Section: Vehicular Emissions Within and Beyond City Boundariesmentioning
This study develops a transboundary political ecology of air pollution to show how its spatially and socially unequal distribution constitutes a form of slow violence among already marginal sections of society. Recent research on transboundary air pollution in Southeast Asia and globally has mainly focused on the supranational or regional scale of environmental governance without taking into proper account the socially differentiated impacts of these cross‐border flows of environmental harm at lower organisational scales. Air pollution in Thailand, which ranks amongst the worst in the world, generates spill‐over effects across sub‐national borders that disproportionately impact the urban and rural poor. We examine the drivers of the three major sources of air pollution in Thailand: vehicular emissions, agricultural emissions and industrial emissions to direct attention toward the barriers and opportunities for collaborative governance in urban, peri‐urban and rural settings. The article argues that administrative fragmentation and the protection of vested economic interests by Thai business and political elites have compromised transboundary governance of the air while adding to socio‐spatial inequalities and environmental injustices. We recommend legislative reforms centred on cross‐sectoral and cross‐jurisdictional cooperation to provide redress for the slow violence perpetrated against marginal citizens in the governance of air pollution.
“…Though several national and city departments oversee urban transport planning, operation, regulation, monitoring, and so on, there is no agency that leads this effort or oversees collaboration among the relevant bodies. This has led to fragmented transport planning and inter-agency conflict (Hossain, 2006;Marks, 2020); it has also ultimately prevented the formation of an authoritative multi-modal transport master plan (Wu and Pojani, 2016).…”
Section: Influence Of Lock-in Factors On Vehicle Usementioning
Consumption of raw materials, energy, manufactured goods, and services is increasingly concentrated in cities, as urbanization accelerates globally. Such consumption is influenced by complex interactions arising between the various socio-technical and natural systems that make up cities. To improve understanding of the interlinked factors that can perpetuate—or “lock-in”—unsustainable consumption, we build an explanatory framework that conceptually joins the literature on socio-technical systems and on urban consumption. Two questions guide our study: (1) What are the principal socio-technical systems in cities that influence consumption behavior? (2) How do these systems interact to lock urban dwellers into unsustainable consumption behavior? The resulting framework incorporates theories of socio-technical lock-in with factors relating to both “structure” and “agency” in consumption literature. Specifically, it describes the influence and interactions of physical, non-physical, and human systems on two interlinked scales: macro-scale (structure and collectively shared conditions) and micro-scale (agency and individually shaped conditions). To demonstrate the practical value of this framework, we apply it to a case study on mobility in Bangkok, Thailand. This allows us to systematically identify the interlinked mechanisms contributing to the growing dependence on and lock-in to individually owned passenger vehicles. Our study thus provides a comprehensive understanding of the multiplex drivers of consumption behavior, taking into account both structure and agency. The framework also provides a tool for other scholars to empirically identify lock-in mechanisms that hamper the adoption of more sustainable consumption behavior in other sectors and geographies.
“…An ineffective traffic signal at an intersection is one of the major reasons causing disorderly traffic flow and congestion [5]. Bangkok's traffic signalling control and management system is currently not well planned [6]. Therefore, to sustainably solve the congestion traffic in Bangkok, an effective system to optimize the traffic flow is needed.…”
The increasing number of on-road vehicles in Bangkok, as well as the traffic flow conditions, are causing many problems for the citizens. To alleviate the problem, effective traffic signal management by optimizing traffic signal timing can be used. As a result, the goal of this research is to improve Bangkok's traffic signal system and management by establishing an effective green light time at intersections in order to increase the vehicle flow rate. The mathematical model is designed to maximize the number of vehicles leaving intersections. Six Bangkok intersections are selected for the experiments. According to the experimental results, the optimization model outperforms current practice by increasing the number of vehicles leaving the intersection by 3.34%. Furthermore, when optimal cycle length is utilized as an upper bound of the model, the overall vehicle flow rate improves.
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