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Jonathan Bunker |
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Profile
Qualifications, Career history and Professional and Group Associations QualificationsBE (civil)(hons), PhD MIEAust MAITPM Career History and biography
Professional and Group Associations
Research
Research areas and external collaborators Research AreasWithin the broad field of planning, Dr Jonathan Bunker and his research team have defined two main research areas:
Traffic Engineering and Transport PlanningTraffic Engineering is a multi-faceted research with the primary goal of providing and enhancing motoring safety to achieve the safe and efficient movement of people and goods throughout the world. Dr. Bunker's research focusses on the planning, geometric design and traffic operations of roads and their networks, terminals, abutting lands and relationships with other modes of transportation. Dr. Bunker and his research team carry out traffic counts, analyse accident statistics, study speed data, examine roadway conditions, conduct research, and review research that other professionals in the field have carried out. Dr. Bunker's areas of research include:
Highway EngineeringHighways continue to be the backbone of the land transportation network supporting sustainable regional and national economy. The newer challenges in highway engineering deal with an ever increasing number of commuters on the highways and the development of speedy modes of transportation, which over time have multiplied the potential risks of highways. In order to meet future challenges, Dr. Bunker and his research team deal with the structural and functional requirements of highways and assesses the socio-economic and environmental impacts of highways for sustainable development. Dr. Bunker and his research team support highway industry through research and education. Their research work is primarily carried out in collaboration with industry, including state, county, and local governments, as well as material suppliers and road building contractors. Research programs are coordinated to address the needs of these groups individually and collectively. Dr. Bunker's research areas include:
External CollaboratorsWithin the broad field of planning, Dr. Bunker and his research team have strong collaborations with:
Teaching
Teaching areas and achievements and units taught Teaching areasDr. Bunker coordinates and teaches courses related to traffic engineering and transport planning at both undergraduate and postgraduate levels at Queensland University of Technology. He developes, teaches and coordinates undergraduate and postgraduate units which include:
Teaching LeadershipDr. Bunker has been the Coordinator for the Bachelor of Engineering programmes of Civil, Civil & Construction, and Civil & Environmental since 2006. He is developing and coordinating the six unit Design strand, which is the backbone of the BE (Civil) curriculum and develops students’ graduate capabilities in a structured fashion. He developed the urban development and engineering courses, focussing on minors and second majors, and industry accreditation issues. He served as an active member of the Course Design Working Group since 2005.
Grants
Funding and selected list of awarded projects Dr. Bunker and his research team have attracted over AUD$2,158,000 in cash plus in-kind contributions in research grants during past eight years at QUT. Selected List of Awarded GrantsWithin the broad field of traffic engineering, Dr. Bunker and his research team have been granted funds to conduct following research projects: Asset Management of road surfacing: Risk Based Decision Support modelling for managing skid resistanceRole: Project Leader Impacts of Multi-combination Vehicles in Urban AreasRole: Chief Investigator Work Integrated Learning in the Bachelor of Engineering CoursesRole: Chief Investigator KGUV Regional Accessibility Study through QUT Sustainable Living InitiativeRole: Principal Investigator Redland Shire Mode Choice StudyRole: Chief Investigator An Innovative Model for Engagement: Integrated Solutions to Sustainable Growth in Coastal QueenslandRole: Chief Investigator Instrumented Car DevelopmentRole: Chief Investigator Freight Corridor Mode PerformanceRole: Principal Investigator Small Teaching and Learning Grant on Hydraulic Engineering Learning CentreRole: Chief Investigator Supervision
Selected list of student projects Within the broad field of transport engineering, Dr. Bunker’s students have undertaken following funded research projects: Selected List of Research Student ProjectsAssessing the Impacts of Multi-Combination Vehicles on Traffic Operation and SafetyThe aim of this research project was to assess the impacts of multi-combination vehicles on traffic operation and safety. The initial intention of this work was to review current literature on MCVs. From this review, characteristics considered to be the most influential on the interaction between MCVs and other road users were to be determined. The objective was then to develop a testing methodology to obtain data on these characteristics, analyse the collected data, interpret the results and determine the implications of the findings. It is expected that the findings of this work will be used to update and develop assessment procedures for innovative MCVs so that assessment of permitted routes for these very specialised vehicles may be based on consistent, objective criteria. The work will also appraise values recommended by Queensland Department of Main Roads (1998) and National Road Transport Commission (2001), as part of the Performance Based Standards for Heavy Vehicles Project. Analysis of Unbound Granular Pavement Deterioration for use in Road Asset Management ModellingThe aim of this project is to increase the understanding of unbound pavement behaviour by investigating the roughness progression of pavements and thus assist in the improvement of roughness prediction methods. All research has been undertaken in a manner that supports a road network pavement management environment, and thus is intended to be directly beneficial to road management agencies. Assessing the Spatial Impacts of Multi-Combination Vehicles in Urban Traffic NetworksMulti-combination vehicles (MCVs) in urban areas impact on productivity, safety, infrastructure, congestion and the environment. However, psychological effects of MCVs on other drivers may also influence the positioning of vehicles and congestion. A testing program was undertaken to observe passenger car behaviour around MCVs in a lateral and longitudinal sense. The outcomes of this research indicate that there is no further psychological impact on passenger car drivers, when travelling around B-doubles compared with semi-trailers. Where the results identified longitudinal behaviour changes, it was still concluded that B-doubles were more efficient at transporting freight when the passenger car equivalence (PCE) per tonne of freight was considered. Assessment and Reduction of the Impacts of Large Freight Vehicles on Urban Traffic Corridor PerformanceIncreasing demand for road freight has lead to a widespread adoption of more productive large freight vehicles (LFVs), such as B-Doubles, by Australia’s road freight industry. Individual LFVs have a greater potential to impact traffic efficiency through their greater length and poorer longitudinal performance. However, this is offset to an extent as fewer vehicles are required to perform a given freight task. This research has developed a means of characterising the effects that LFVs have on the performance of an urban arterial corridor managed by signalised intersections through development of a calibrated, first-principles microsimulation model. The model was applied to various freight policies and traffic management scenarios, including freight vehicle mode choice, lane utilisation and traffic signal settings; as well as the effectiveness of green time extension for approaching heavy vehicles. Benefits were able to be quantified in terms of reduced travel times and stop rates for both heavy and light vehicles in urban arterial corridors. Modelling Road and Rail Freight Energy Consumption: A Comparative StudyThe Australian land based freight transport task is forecast to experience very significant rates of growth in the short to medium term. Amongst the major implications of such increases task are the effects on the unsustainable nature of the demand for scarce energy resources; as well as the adverse air quality and greenhouse impacts. It is important to be able to quantify the degree to which such impacts can be minimized though mode share shifts from road to rail; road and rail infrastructure investment; and network performance enhancing measures. The thesis describes the development of a spreadsheet based tool to compare corridor energy consumption of road and rail movements. The key parameters influencing the energy estimation and comparison procedure are identified and a methodology to compare door to door freight movement is provided. The energy comparison tool is designed to provide estimates on the energy consumption implications of changes in mode and vehicle types; average loadings; road and rail link improvements and other operating parameters. The tool takes into account physical route characteristics; commodity types; vehicle configuration and operating regimes. Using Risk Analysis to Prioritise Road-Based Intelligent Transport Systems (ITS) in QueenslandWith perpetual strains on resources, road agencies need to develop network-level decision-making frameworks to ensure optimum resource allocation. This is especially true for incident management services and in particular variable message signs (VMS), which are relatively immature disciplines compared to traditional road engineering. Generally, road authorities do carry out needs assessments, but qualitatively in many cases. Therefore, this research presents a framework that is systematic, quantitative and relatively easy to implement. In order to prioritise VMS infrastructure deployment, a risk management approach was taken that focuses on minimising the impacts on, and costs to the community. Modelling Passenger Mode Choice Behaviour Using Computer Aided Stated Preference DataThe main purpose of this research was to develop mode choice models which can reflect the current travel behaviour of the residents of Redland Shire and forecast the mode shares under different travel scenarios. These travel scenarios could be real or virtual, depending on the data provided by the respondent. For this purpose, a unique computer based travel survey instrument was designed to assess the respondents’ current and future travel behaviours, and further categorised them on the basis of traveller type i.e captive or choice users. Various logit models were estimated on the mode choice data, in order to forecast the travel behaviour of the population of the study area, if the hypothetical travel environment, presented in the surveys, can be implemented in practice. Multi-Jurisdictional Institutional Framework for the Effective Implementation of Regional Traffic Incident Management StrategyThere are a number of critical issues facing transport policy and planning, particularly with the growth in traffic congestion in urban areas. Traffic incidents are a major cause of congestion, with significant economic, social and environmental impacts. Regional transport strategies in Australia have been largely unsuccessful in achieving their objectives and do not appear to seriously consider the implementation challenges being faced. The research will investigate implementation barriers, including integration and coordination mechanisms, effective institutional roles and procedures and incentive instruments. A framework for effective implementation will be developed and tested by questionnaire, survey and interview techniques involving experts, practitioners and stakeholders. Development of a methodology to adjust field Weigh In Motion data to remove cyclical and other systematic variationsThis project explores the hypothesis “that erroneous Weigh in Motion (WiM) data can be effectively identified and post processed in such a manner as to improve its accuracy”. Embodied in this hypothesis are five key concepts: that some data is erroneous, that the errors can be identified, that an adjustment system can be developed, that the system can be effectively applied, and that it can applied to all WiM data irrespective of WiM system type. Essentially the research programme aims to use Queensland WiM data as collected by Main Roads to explore the hypothesis. Investigation to Improve High Speed Rail SustainabilityTransportation systems are essential to the prosperity of modern societies and economies. However the increasing usage of private cars and trucks is shaking the fragile equilibrium between economic growth, social development and the environment. Not only does it create impacts such as congestion, accidents, pollution and energy consumption, but it also supports a vicious cycle of dispersed land use patterns and the need for more car usage. The growing concern on transport impacts is stirring decision-makers to revise their approach toward the evaluation of transport projects and policies. In this attempt many initiatives have sprung around the world to address sustainable transport; however governments do not yet have a clear idea of the tools to achieve efficient and safe transport, in the best possible social and environmental circumstances. The focus of the current research is to investigate possible instruments to deliver sustainable mobility of goods and persons that support and shape sustainable development patterns and socio-economic attributes of urban centres and regions. Intermodal Passenger Transport System OptimizationIn the light of increasing congestion on city roads and our understanding about the adverse effects of the use of motor vehicles on climate, it is important to increase the number of people using public transport. It is also equally important to encourage existing passengers to continue using public transport by providing better and improved facilities. However, any increase in public transport patronage comes with consequences of putting extra load on the existing infrastructure. Simply adding more transit vehicles to cater for the increased demand will not solve the problem as additional passengers creates crowding at the station platform. Heavy boarding of passengers at some busway station platforms reduces comfort levels for passengers and makes manoeuvring to the bus door difficult. This in turn increases passenger service times and hence bus dwell times. From the literature review, there is very limited knowledge about the effects of crowding. Crowding not only affects dwell time but also reduces the operation efficiency of the platform. This research focuses on developing a comprehensive tool which can evaluate the platform efficiencies under varying level of passenger crowding. The interface between passenger and bus, and passenger crowding, at a busway platform will be modelled by using simulation software. This study aims in developing an interrelationship between platform crowding and bus operation efficiency and thus will have direct applications in providing improved station facilities. Evaluating the Transportation Impacts of Different Transit Oriented Development (TOD) ConfigurationsGrowing transportation costs and time spent travelling is of increasing concern for planners. The increasing use of car is making the situation worse leading to increased load on infrastructure, congestion, pollution and adverse health effects. In order to lessen these adverse effects and make the development sustainable, the Transit Oriented Development (TOD) concept was introduced during mid 80’s. TOD is a planned community with a rich mix of land uses, pedestrian environment and good quality public transport service. The transportation benefits of TODs claim reduced reliance on car with increased mode shares for walking, cycling and public transport. Further, it is assumed that people associated with TOD will travel less. This research aims to develop an improved travel demand model, using four step modelling, to study the travel characteristics of people and model the travel behaviour of inhabitants of a TOD. This model will help to investigate the various claims and will also be used to test various TOD configurations. The data required for testing the methodology will be collected from a case study TOD. Surveys are planned for collecting the travel data for residents, shoppers, students and employees. Results of this data analysis and outputs of the model will help to assess the transportation impacts of a TOD from Australian context. Truck overloading study in developing countries and strategies to minimise its impactsOverloaded truck transport is a serious problem in many developing countries, and it incurs huge costs in terms of maintenance and rehabilitation of the damaged road network. The problem of overloading not only causes economic loss but also safety and environmental problems. Many developing countries have been attempting to address this problem in recent years. However, it is an inevitable feature of economic development and expansion. This study examines the overloading problem on a highway network in Anhui Province, China and seeks to determine the damage and hence economic losses. Heavy vehicle suspension testing and analysisSome road authorities are becoming increasingly concerned that heavy vehicles with air-sprung suspensions are not as sympathetic to roads as they might otherwise be. There are two HV design and specification issues that have lead to these concerns: HVs operating on the network with air-spring suspensions which were compliant with VSB11, when new are now not complying due to poor maintenance; and the growing evidence that air-sprung “road friendly suspensions” (RFS) do not load share in the dynamic sense. A substantial test programme was carried out in 2007. The objectives of this research are to analyse the 2007 data to determine: if the innovative suspension system improves dynamic load sharing; and if the low-cost innovative methods of suspension testing are able to be validated against the more expensive VSB11-style testing. A further avenue of research will be to instrument and modify a heavy vehicle test roller machine to provide an eccentric loading into HV suspensions. This will yield conclusions on the levels of maintenance beyond which HV suspensions move outside the envelope of “road friendliness” and cause road damage. Publications
Selected list of publications Selected List of PublicationsFor more publications visit eprints: http://eprints.qut.edu.au/view/person/Bunker,_Jonathan.html Books and Theses
Book Chapters
Refereed Journal Papers
Conference Papers (* paper refereed in full)
Articles in Periodicals
Selected Published Reports and Government Publications
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