Search results
1 – 10 of 83Norm O'Reilly, Gashaw Abeza, Andy Fodor, Eric MacIntosh, John Nadeau, Lane MacAdam, Gary Pasqualicchio, Mark Dottori and Heather Jane Lawrence
The criticisms put forward against economic impact studies lead to a key question: “Is it possible to measure the impact of sporting properties and events in a holistic…
Abstract
Purpose
The criticisms put forward against economic impact studies lead to a key question: “Is it possible to measure the impact of sporting properties and events in a holistic, conservative, and reliable way?” This research endeavors to build on the academic literature to add to the scope and rigor of economic impact research by proposing an impact assessment process model for practitioners that facilitates employment of a holistic, conservative and reliable impact study and seeks to address these concerns.
Design/methodology/approach
Using seven identified key realities that highlight the challenges facing impact studies, and adopting a collaborative self-ethnographic methodological approach, the work highlights lessons learned from four empirical economic impact studies undertaken by the authors over a five-year period.
Findings
The study provides a broad view of impact studies, which extend beyond financial implications and provides a more inclusive methodology. Particularly, the proposed impact assessment process model seeks to improve the credibility of impact studies by facilitating a holistic approach that incorporates direct, indirect and intangible impacts.
Research limitations/implications
The proposed model has value to researchers and is designed to improve the overall credibility of economic impact methodology. It also provides a more accurate measure of direct impact while considering intangible and indirect impacts, including social/community impacts.
Practical implications
The proposed model has value to and practitioners and is designed to improve the overall credibility of economic impact methodology. It also provides a more accurate measure of direct impact while considering intangible and indirect impacts, including social/community impacts.
Originality/value
The proposed process model to measure the impact of a sports event is a needed element in the world of funding, managing and implementing events of all sizes.
Details
Keywords
Tao Peng, Xingliang Liu, Rui Fang, Ronghui Zhang, Yanwei Pang, Tao Wang and Yike Tong
This study aims to develop an automatic lane-change mechanism on highways for self-driving articulated trucks to improve traffic safety.
Abstract
Purpose
This study aims to develop an automatic lane-change mechanism on highways for self-driving articulated trucks to improve traffic safety.
Design/methodology/approach
The authors proposed a novel safety lane-change path planning and tracking control method for articulated vehicles. A double-Gaussian distribution was introduced to deduce the lane-change trajectories of tractor and trailer coupling characteristics of intelligent vehicles and roads. With different steering and braking maneuvers, minimum safe distances were modeled and calculated. Considering safety and ergonomics, the authors invested multilevel self-driving modes that serve as the basis of decision-making for vehicle lane-change. Furthermore, a combined controller was designed by feedback linearization and single-point preview optimization to ensure the path tracking and robust stability. Specialized hardware in the loop simulation platform was built to verify the effectiveness of the designed method.
Findings
The numerical simulation results demonstrated the path-planning model feasibility and controller-combined decision mechanism effectiveness to self-driving trucks. The proposed trajectory model could provide safety lane-change path planning, and the designed controller could ensure good tracking and robust stability for the closed-loop nonlinear system.
Originality/value
This is a fundamental research of intelligent local path planning and automatic control for articulated vehicles. There are two main contributions: the first is a more quantifiable trajectory model for self-driving articulated vehicles, which provides the opportunity to adapt vehicle and scene changes. The second involves designing a feedback linearization controller, combined with a multi-objective decision-making mode, to improve the comprehensive performance of intelligent vehicles. This study provides a valuable reference to develop advanced driving assistant system and intelligent control systems for self-driving articulated vehicles.
Details
Keywords
Freeway work zones have been traffic bottlenecks that lead to a series of problems, including long travel time, high-speed variation, driver’s dissatisfaction and traffic…
Abstract
Purpose
Freeway work zones have been traffic bottlenecks that lead to a series of problems, including long travel time, high-speed variation, driver’s dissatisfaction and traffic congestion. This research aims to develop a collaborative component of connected and automated vehicles (CAVs) to alleviate negative effects caused by work zones.
Design/methodology/approach
The proposed cooperative component is incorporated in a cellular automata model to examine how and to what scale CAVs can help in improving traffic operations.
Findings
Simulation results show that, with the proposed component and penetration of CAVs, the average performances (travel time, safety and emission) can all be improved and the stochasticity of performances will be minimized too.
Originality/value
To the best of the authors’ knowledge, this is the first research that develops a cooperative mechanism of CAVs to improve work zone performance.
Details
Keywords
IN order to be able to discriminate with certainty between butter and such margarine as is sold in England, it is necessary to carry out two or three elaborate and delicate…
Abstract
IN order to be able to discriminate with certainty between butter and such margarine as is sold in England, it is necessary to carry out two or three elaborate and delicate chemical processes. But there has always been a craving by the public for some simple method of determining the genuineness of butter by means of which the necessary trouble could be dispensed with. It has been suggested that such easy detection would be possible if all margarine bought and sold in England were to be manufactured with some distinctive colouring added—light‐blue, for instance—or were to contain a small amount of phenolphthalein, so that the addition of a drop of a solution of caustic potash to a suspected sample would cause it to become pink if it were margarine, while nothing would occur if it were genuine butter. These methods, which have been put forward seriously, will be found on consideration to be unnecessary, and, indeed, absurd.
Sanjay Choudhari and Amit Tindwani
This study aims to assist the project manager in minimising the material logistics cost of road project by planning the optimal movement of aggregate across three stages of supply…
Abstract
Purpose
This study aims to assist the project manager in minimising the material logistics cost of road project by planning the optimal movement of aggregate across three stages of supply chain: sourcing, processing and distribution.
Design/methodology/approach
The paper conceptualises the raw material consumption in a road project as a logistics network distribution problem. A linear programming (LP) formulation is constructed with appropriate decision variables by integrating the three stages of material movement. The series of LP scenarios are solved using an LP solver to decide the optimal movement of the aggregate to be consumed in different layers of road segments.
Findings
The results obtained from the model show that planning material logistics of an entire road project using optimisation provides substantial saving in logistics costs than using common sense. Further, the magnitude of cost saving improves as the complexity of the model increases in term of enormous feasible options.
Practical implications
The model shown in this paper may serve as a basis for planning the logistics of raw materials consumed in the road projects. The small improvement in material flows by optimising supply chain shows sensible cost benefit to the project manager and hence control and monitor the overall cost and activities of the project. The output of the model is also expected to help the project team as an input in the decision-making processes such as appropriate material sourcing contract, capacity assessment of material processing facility and transportation planning.
Originality/value
While the optimisation models are widely used and popular among the many industrial applications, this research shows distinct application of such a model in managing the logistics of the road construction project.
Details
Keywords
The death was announced on 21st December 1964 of Mr H. R. Verry, who was known to many members of Aslib. Up to his retirement in 1963 Mr Verry was Adviser on Photographic and…
Abstract
The death was announced on 21st December 1964 of Mr H. R. Verry, who was known to many members of Aslib. Up to his retirement in 1963 Mr Verry was Adviser on Photographic and Allied Processes to the O & M Section of the Treasury. He was the author of a number of textbooks on photographic reproduction techniques and often contributed to the book reviews in the Journal of Documentation.
This paper aims to examine the remedies currently available in Ireland to resolve boundary disputes to assess the importance of the role played by adverse possession in this…
Abstract
Purpose
This paper aims to examine the remedies currently available in Ireland to resolve boundary disputes to assess the importance of the role played by adverse possession in this context. It also examines the potential impact of certain reforms in this area of law.
Design/methodology/approach
The research methodology is primarily doctrinal, although a comparative approach is adopted for the purposes of assessing whether certain lessons can be learned from recent reforms to the English law on adverse possession and the Australian approach to resolving boundary disputes, which relies heavily on mistaken improver and building encroachment legislation.
Findings
This paper demonstrates how the current law leaves certain mistaken improvers or encroachers on neighbouring land without a remedy, as they cannot rely on the doctrine of proprietary estoppel or adverse possession. If Ireland decides to replicate the English good faith requirement in relation to adverse possession of boundary land, the remedial vacuum facing these mistaken improvers or encroaching builders will become more pronounced. It is submitted that any such reform should be supplemented by the introduction of legislation akin to that operating in Australia which would facilitate the consideration of a broad range of factors and provide for flexible remedies to resolve such difficulties. It is also submitted that the legislation imposing such a good faith requirement should be carefully drafted to avoid the potential interpretative difficulties associated with the English reforms.
Originality/value
Boundary disputes are an unfortunate fact of life. The prevalence of boundary disputes and high costs associated with boundary litigation makes this review and critique of the current law and potential reforms highly relevant.
Details
Keywords
Denning, Edmund Davies and L.J. Phillimore
February 10, 1969 Master and Servant — Negligence — Safe system of work — Roadworks — Workman in gang resurfacing carriageway injured by lorry driving too fast — Warning signs in…
Abstract
February 10, 1969 Master and Servant — Negligence — Safe system of work — Roadworks — Workman in gang resurfacing carriageway injured by lorry driving too fast — Warning signs in position — Whether employers negligent in not erecting barriers against passing traffic — No evidence of common practice of erecting barriers — Effect of suggested barriers to reduce traffic to one lane — Need to balance public interest against risk to workers on carriageway — Whether lorry wholly to blame.