Amila Jayasinghe

Amila Jayasinghe
University of Moratuwa | UoM · Department of Town & Country Planning

BSc(T&CP), MPlan(Infrastructure), EngD

About

87
Publications
31,782
Reads
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262
Citations
Introduction
Amila Jayasinghe currently works at the Department of Town & Country Planning, University of Moratuwa. Amila does research in Network Analysis, Spatial Analysis & Simulation, Environmental Engineering, Transportation Planning and GIS. Their current project is 'Network Centrality Application.'
Additional affiliations
July 2011 - present
University of Moratuwa
Position
  • Lecturer
Description
  • My expertise includes transport network analysis; human movements; spatial simulation; Infrastructure network; environmental modeling; GHG emissions; Climate Change analysis.
July 2011 - present
University of Moratuwa
Position
  • Lecturer
Description
  • Infrastructure Planning & Design; Traffic & Transportation Planning; Port Planning; Web based GIS; Mobile GIS; EMS
Education
June 2009 - June 2011
CEPT University
Field of study
  • Infrastructure Planning
April 2004 - April 2008
University of Moratuwa
Field of study
  • Town & Country Planning

Publications

Publications (87)
Poster
Full-text available
R4TLI is an initiative that endeavors to promote Research and Development in the Transport and Logistics Industry in Sri Lanka, and in the Asian region helping diagnose its current issues, experienced by the industry and identify potential improvements and sustainable solutions, based on scientific evidence. This annual research conference intends...
Article
Full-text available
This paper examines how global trade shapes and intensifies disasters. Juxtaposing three basic, everyday consumer goods – a t- shirt, a brick, and a tea bag – with disasters manifesting in their respective global supply chains, it high-lights how climate change, local environmental degradation, and carbon emissions are dynamically shaped by consump...
Article
Full-text available
This paper proposes a novel framework for road data surveying and 3D urban visualisation based on deep-learning technologies, open data, and GIS techniques. Existing road inventory preparation methods are time-consuming, labour-intensive, inefficient, and lack an acceptable method for 3D urban visualisation in Sri Lanka. Thus, modern approaches are...
Article
Full-text available
The purpose of this study was to evaluate the four-dimensional relationship between land use, accessibility, density, and surface runoff in urban areas. In contemporary literature, a series of studies have been conducted that extensively discuss the natural components associated with the surface runoff in urban areas. However, the dynamic and compl...
Article
Full-text available
The transportation system is an integral component of a modern urban environment. It’s drawbacks cause numerous transport - related issues in a majority of cities around the world. Increasing traffic congestion is one of them. Traffic congession in major roads accounts for an annual loss of approximately 40 billion rupees in Sri Lanka. This system...
Article
Full-text available
During the last two decades, determining the urban boundaries of cities has become one of the major concerns in the urban and regional planning subject domains. Many scholars have tried to model the change of urban boundaries as it helps with sustainable development, population projections and social policy making, but such efforts have been futile...
Article
Measuring the level of urban sprawl is a challenging task that lacks a clear universal method. Therefore, it is worthwhile to investigate whether results differ with the methods utilized, to compute the level of urban sprawl. Consequently, this paper will also contribute to overcome the two limitations of emerging researches. Frist, Recent studies...
Article
Full-text available
The measuring of urban sprawl is a challenging task, as it does not have a clear universal method. Therefore, it is worthwhile to investigate whether results differ with the methods utilized, to compute the level of urban sprawl. Accordingly, the study aims to contribute constructively to overcome the two-limitations noted in emerging researches. F...
Presentation
The existing road inventory preparation methods are time-consuming, labor-intensive, inefficient, and there is no acceptable method for 3D urban visualisation. Accordingly, the study proposed a new cost-effective application to prepare road inventors & 3D urban visualiaation utilising deep learning technologies. The study comprised three main stage...
Technical Report
Full-text available
Disasters like floods, droughts and landslides are a growing risk for millions of people in the global South. Yet in our globalising world, they are increasingly connected to processes originating in the global North. Focusing on imports from Cambodia, Sri Lanka and the South Asian ‘brick belt’, this project examines how British trade shapes the di...
Presentation
The study develops a novel Free and Open Source (FOSS) approach to mapping land use (LU) in urban areas: based on deep learning technology and open data while overcoming the constraints noted in the existing practices. The existing LU mapping methods are expensive, time-consuming, labor-intensive, inefficient, and extremely limited applications ava...
Presentation
Cities are ubiquitous in modern urban development because they contain a diverse set of socioeconomic potential. As a result, population migration to cities is an unavoidable task that has resulted in a significant increase in urban population and city scale. However, it was discovered that very few studies have been conducted to delineate cities a...
Chapter
Full-text available
Since the World Health Organization (WHO) declared the coronavirus infectious disease 2019 (COVID-19) outbreak a pandemic on 11 March 2020, the everyday lives of the whole global population have been drastically changed. Lockdown shortened many of the physical worlds to homes and immediate neighbourhoods. Since the beginning of the COVID-19 pandemi...
Article
This research evaluates the effectiveness of building regulations in coping with urban flooding under different precipitation scenarios. Accordingly, the study simulated seven alternative scenarios considering the variations of precipitation, plot coverage regulations, and Low Impact Development (LID) options. The study utilized open-source geospat...
Conference Paper
Land fragmentation can define as the “situation where one area/unit is composed of a large number of parcels that are too small for their rational utilization” [5]. Land fragmentation affects sustainable development through its multiple impacts on environmental, economic, and social costs [13]. Effective land use management and policy decisions are...
Conference Paper
Full-text available
Transport system is a vital element in the function of urban areas and minimizing distractions to transport networks caused by natural disasters is a key goal in disaster resilient urban planning and development. The study presents a framework to assess the transport networks’ resilience for urban flooding. The proposed framework is developed based...
Article
Full-text available
The configuration of urban areas depicts the pattern of urban agglomeration that drives a country's economy. Since the era of the early-industrial revolution, many scholars have been continuingly attempted to recognize the pattern of urban agglomeration in cities and regions. Nevertheless, such efforts had been in completed in capturing the complex...
Article
Full-text available
This study presents a methodology to assess transport network resilience to urban flooding. The proposed methodology is developed based on the centrality measures and graph theory. The study utilises Open-Source GIS tools to compute betweenness and closeness centrality values. The case study was carried out in Greater Colombo - Sri Lanka, with refe...
Article
Full-text available
The study proposes a framework to model the three-dimensional relationship among density, land use, and accessibility in urban areas constructively contributing to overcome the limitations noted in the domains of urban planning and transport planning. First, most of the existing studies have focused on the topological characteristics in capturing t...
Article
Full-text available
Community resilience assessments and minimizing the anticipated disruptions to vulnerable communities, is a broad topic in disaster studies. In common practice, most of the indicator-based resilience assessment studies rely on statistical aggregation methods of tabular data collected for macro administrative units, as it is readily available in mos...
Article
Full-text available
Simulation of flood inundation in urban areas longer important, given the magnitude of potential loss and disruption associated with non-river based, urban flooding. The complexity of the urban environment and lack of high-resolution topographic and hydrologic data compromise the development and implementation of models. Low impact development (LID...
Article
Full-text available
Rapid urbanization and land cover changes have increased the quantity of storm water flow in urban areas. In Sri Lanka, local authorities generally prefer conventional drainage solutions rather than providing innovative sustainable solutions in storm water management (SWM). Due to the lack of technological innovations and required standards, develo...
Article
Full-text available
New developments will contribute to increased traffic to the external environment. Therefore, the majority of nations, in planning and building regulations and guidelines have adopted steps to control them beforehand. Similarly, in Sri Lanka, new developments in the approval process should be undertaken, based on their legal specifications and thro...
Conference Paper
Full-text available
Natural flood defence mechanism is an ecosystem service (ES) that reinforces the community’s resilience to flooding. The unprecedented urban development with the extensive growth of built up areas over the last century has absurdly weakened the natural flood defence mechanism resulting in high intensive flood exposure and damages. Hence, disaster r...
Conference Paper
Full-text available
Disaster driven population resilience assessments and minimizing disruption to vulnerable communities, is a broad topic in disaster management studies. But in common practice, most studies rely on administrative or statistical data aggregation methods to access population resilience, as it is readily available in most countries. However, this metho...
Conference Paper
Full-text available
Natural flood defence-mechanism is an ecosystem service (ES) that reinforces the community's resilience to flooding. The unprecedented urban development with the extensive growth of built-up areas over the last century has absurdly weakened the natural flood defence mechanisms resulting in highly intensive flood exposure and damages. Hence, disaste...
Article
Full-text available
Retail stores along the road network generate additional traffic and it changes the spatial travel pattern of the street network. Therefore, it is better to understand the spatial configurations and classify the retail spatial pattern of the retail stores at the early stage of retail development. Therefore, this article objects to delineate the tra...
Article
Full-text available
This study is assessing the level of city accessibility in the regional planning context special referenced of the Northern region, Sri Lanka. The study carried out through the two consecutive methodologies which were frequently used in modern transportation context, namely "Network Analysis (Shimbel Index)" and the "Centrality Analysis". The resul...
Article
Full-text available
This study proposes a simulation approach to model the spatial distribution of population (i.e., population density) in a given region into a great deal of detail. The approach is based on two mathematical notions: graph theory and fractal geometry. Accordingly, the approach takes self-similarity of road accessibility into account when simulating t...
Article
Full-text available
This paper presents a model to predict population distribution based on road network centrality. The proposed model predicts population distribution based on accessibility. The concept of network centrality is used to measure the accessibility of the location. The cases study was conducted in the Colombo Metropolitan Area, Sri Lanka. The study deve...
Poster
Full-text available
There is an increasing need to manage the population distribution in an urbanizing world. This has become a strong challenge for decision makers partly due to the limited-availability and validity of accurate methods to predict future population distribution scenarios. In conventional birth-rate and death rate and net migration-based population for...
Poster
Full-text available
The research hopes to investigate the variables which trigger fragmentation while evaluating the intensity of fragmentation The study is developed based on landscape ecology and study the influence of the pattern of a landscape on process land fragmentation In order to investigate the dynamics of paddy land fragmentation, data analysis accomplished...
Conference Paper
Full-text available
This paper reveals a review on sustainability assessment tools currently applied to the mega transport projects in Sri Lanka. The study initiated with the literature review on sustainability assessment practices of transport infrastructure in different context, parallel with efforts to improve these practices. The review empowered the issues and ga...
Article
Full-text available
The objective of this study was to explore the potential of 'Network Centrality Analysis' method to estimate passenger attraction to public transportation (PT) stations. Accordingly, the study employed closeness centrality to measure the level of accessibility to a station from surrounding areas via a set of road segments; and betweenness centralit...
Article
Full-text available
This study presents a method to model population growth of spatial units by incorporating measures of road network centrality instead of conventional statistical models of population growth. The proposed model enables the estimation of population growth based on the changes in the urban form represent by the changes in the road network and their ce...
Article
Full-text available
The study proposes a novel method for modeling traffic volumes at the road segment level of large-scale urban road networks. This study has been placed in a milieu where existing methods on modeling vehicular traffic volume are hampered by data and cost constraints, especially in developing countries. Emerging traffic modeling methods, based on cen...
Conference Paper
Full-text available
Vehicular mode choice can be identified as significant factor when considering the traffic flow pattern, urban land use configurations and economic flow pattern in urban neighbourhood context. In this particular research mainly considered the street configuration impact to the vehicular mode choice based on the centrality parameters specially based...
Conference Paper
Full-text available
Logistics in disaster mainly support in two ways which are a victim rescuing or evacuation of people and an essential providing to survive them. This paper is the model application to another case study in Bangkok, Thailand. The natural disaster is severe flooding occurred during the 2011 monsoon season is applied. The proposed model has been studi...
Poster
Full-text available
This exploratory research is an attempt to understand if indeed street configuration plays a role in mode choice, and if so what might be the contribution of Centrality Parameters.
Article
Full-text available
This paper focuses on two typical behaviors, namely "cut tail" and "giving way", of motorcycle at intersection. Firstly, the study applied the anticipation movement approach and the two-player game theory to describe the motorcycle's behaviors. The anticipation movement approach is applied to depict the manner of detecting and reacting to the confl...
Article
Full-text available
Disaster resilience studies have acknowledged the role of the natural environment in reinforcing community resilience; however, pragmatic environmental indicators are lacking, particularly geospatial composite indicators. This paper aims to introduce a composite environmental indicator for assessing community resilience to floods, targeting regiona...
Article
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Bus priority lane (BPL) has been a widely adopted and successful strategy in the planning context to attract passengers towards the public transportation. In the implementation of bus priority lane, it is required to fulfill the basic infrastructure of space allocation for the priority lane, the number of buses available for the circulation, suffic...
Research
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Conference Paper
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This study introduces a novel approach to analysis impact of road configuration on road traffic crash. The proposed method is developed based on network analysis and use fourcentrality parameters that are connectivity, choice, local integration and global integration to analysis road network configuration. Spatial data on Road Traffic Crash (RTC) w...
Conference Paper
This paper focuses on two typical behaviors of motorcycle at intersection that are "cut tail" and "giving way". Firstly, the study applied the anticipation movement approach and the two-player game theory to describe the motorcycle's behaviors. The anticipation movement approach is applied to describe how motorcycles detect and react inside the con...
Article
Full-text available
This paper introduced a network centrality-based method to estimate the volume of trip attraction in traffic analysis zones. Usually trip attraction volumes are estimated based on land use characteristics. However, executing of land use-based trip attraction models are severely constrained by the lack of updated land use data in developing countrie...
Article
Full-text available
Humanitarian logistics are recognized as significant issues of natural disaster operations and management. This study considers the vital item distribution network models to relieve the large number of surviving victims under their uncertainty by the reason that the post-disaster undergoes fluctuation of demand and imprecise prediction. The purpose...
Article
Full-text available
This paper presents an alternative method to estimate Annual Average Daily Traffic (AADT) volume of road segments in metropolitan areas based on the road network centrality. The proposed method is more rigorous than existing network centrality applications due to two novel features incorporated. First is ‘multiple centrality’, which captures traffi...
Article
Full-text available
This study investigates the relative importance of ‘metric distance’(MD),‘topological distance’(TD) and ‘geo-metrical distance’(GMD) in determining the route choice behavior of motorized travelers by mode. The study is based on data which has traced the travelers’ actual movements by using mobile GIS applications. MD, TD and GMD were calculated bas...
Conference Paper
Full-text available
We have developed a new method based on graph theory and centrality to simulate traffic volume, which can effectively works to overcome the above-mentioned difficulties. Accordingly, this paper introduces the developed method, i.e. ‘Network Centrality Assessment’-NCA, and application possibilities based on five case studies in selected Sri Lankan a...
Conference Paper
Full-text available
Urban streets demonstrate a hierarchical structure in the sense that a majority is trivial, while a minority is vital (Jiang, 2009). Jiang claimed that “coherent urban streets demonstrate a scaling law and characterized by the 80/20 road hierarchy principle, i.e. 80% of streets are less central (below the average), while 20% of streets are more cen...
Article
Full-text available
This paper presents a robust, dynamic and simplified method to predict vehicular traffic volume in urban and regional geographies based on Network Centrality Assessment (NCA). The case study was conducted in Colombo, Sri Lanka. Study employed three types of graphs and three kinds of analysis methods to compute network centrality referring to four c...
Article
Full-text available
Sri Lankan cities have faced severe impacts of climate change over past years. Past records of daily temperature and rainfall data reveal significant changes of temperature and rainfall patterns during last two decades. Identification of level of vulnerability plays an important role in decision making process. Local and national level institutions...
Article
Full-text available
This study examines the capability of centrality parameters of the road network to explain and predict traffic flow by types of vehicles. The case study was conducted in Colombo Metropolitan Area, Sri Lanka. Study used four centrality parameters i.e. connectivity, global integration, local integration and choice; and three analysis methods i.e. top...
Article
Sri Lankan cities have faced severe impacts of climate change over past years. Past records of daily temperature and rainfall data reveal significant changes of temperature and rainfall patterns during last two decades. Identification of level of vulnerability plays an important role in decision making process. Local and national level institutions...
Article
The process of how people recognize the space ( spatial configurations) and utilize them is an important subject for understanding of human walking pattern. It plays a vital role in pedestrian pathway and city street network design. In this context this study tried to investigate the relationship between Human walking pattern and Spatial Configurat...
Article
Full-text available
This study is mainly focused on providing an overview of the current status of awareness and practice of Sri Lankan coastal urban local authorities regarding the integrating climate change responses at local level. Not only about what is known, but also about the existing gaps in their knowledge and new directions for future works in this area has...