scholarly journals Safety effects of work zone advisory systems under the intelligent connected vehicle environment: a microsimulation approach

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Suyi Mao ◽  
Guiming Xiao ◽  
Jaeyoung Lee ◽  
Ling Wang ◽  
Zijin Wang ◽  
...  
Keyword(s):  
Evaluation Method ◽  
Driving Simulator ◽  
Negative Influence ◽  
Work Zone ◽  
Connected Vehicle ◽  
Content Type ◽  
The Real ◽  
Traditional System ◽  
Traffic Conditions ◽  
Advisory Systems

Purpose This study aims to investigate the safety effects of work zone advisory systems. The traditional system includes a dynamic message sign (DMS), whereas the advanced system includes an in-vehicle work zone warning application under the connected vehicle (CV) environment. Design/methodology/approach A comparative analysis was conducted based on the microsimulation experiments. Findings The results indicate that the CV-based warning system outperforms the DMS. From this study, the optimal distances of placing a DMS varies according to different traffic conditions. Nevertheless, negative influence of excessive distance DMS placed from the work zone would be more obvious when there is heavier traffic volume. Thus, it is recommended that the optimal distance DMS placed from the work zone should be shortened if there is a traffic congestion. It was also revealed that higher market penetration rate of CVs will lead to safer network under good traffic conditions. Research limitations/implications Because this study used only microsimulation, the results do not reflect the real-world drivers’ reactions to DMS and CV warning messages. A series of driving simulator experiments need to be conducted to capture the real driving behaviors so as to investigate the unresolved-related issues. Human machine interface needs be used to simulate the process of in-vehicle warning information delivery. The validation of the simulation model was not conducted because of the data limitation. Practical implications It suggests for the optimal DMS placement for improving the overall efficiency and safety under the CV environment. Originality/value A traffic network evaluation method considering both efficiency and safety is proposed by applying traffic simulation.

Evaluating the Effects of Connected Vehicle Weather and Work Zone Warnings on Truck Drivers’ Workload and Distraction using Eye Glance Behavior

2020 ◽  
Vol 2674 (3) ◽  
pp. 293-304
Author(s):  
Omar Raddaoui ◽  
Mohamed M. Ahmed
Keyword(s):  
Driving Simulator ◽  
Time Window ◽  
Real Life ◽  
Truck Drivers ◽  
Work Zone ◽  
Connected Vehicle ◽  
Driver Assistance Systems ◽  
Weather Impact ◽  
Short Time Window ◽  
Scanning Behavior

This study acts in support of the Wyoming Department of Transport (WYDOT) connected vehicle pilot efforts in the deployment of effective, safe, and user-centered connected vehicle (CV) applications and human machine interface (HMI) displays. This study sought to quantify the workload demands and distraction introduced by the pilot’s spot weather impact warning (SWIW) and work zone warning (WZW) applications on professional truck drivers. Using driving simulator experimentation and eye-tracking technology, the effects of exposure to the CV warnings on the participants’ glance behavior were quantified. The study revealed that the weather notifications did not invoke any notable workload or distraction to the participants. Conversely, the WZWs deteriorated the participants’ roadway scanning behavior and brought about prolonged off-road glances, and therefore could carry adverse safety impacts to drivers in real-life conditions. This was largely attributed to the fact that, unlike the weather notifications, the WZW application appeared to have over-communicated information to the participants during a short time window and under difficult driving conditions and resulted in a relatively cluttered HMI. In light of these findings, WYDOT, the leading pilot stakeholder, is amending the design of the WZW application in such a way that message flow rate is reduced and only necessary information is displayed. All in all, the methodology applied in this study was effective in uncovering the overall effects of exposure to CV warnings and therefore could be useful for evaluating workload and distraction in the context of emergent advanced driver assistance systems.

Safety Impact of Connected Vehicles on Driver Behavior in Rural Work Zones under Foggy Weather Conditions

2021 ◽  
pp. 036119812110491
Author(s):  
Eric Adomah ◽  
Arash Khoda Bakhshi ◽  
Mohamed M. Ahmed
Keyword(s):  
Driving Simulator ◽  
Situational Awareness ◽  
Driver Behavior ◽  
Weather Conditions ◽  
Safety Performance ◽  
Work Zone ◽  
Community Safety ◽  
Crash Risk ◽  
Connected Vehicle ◽  
Time To Collision

Work zone safety is one of the paramount goals of the safety community. Safety in WZs is a particular concern under foggy conditions as they represent an exogenous factor contributing to high variability in driver behavior. In line with the Connected Vehicle (CV) Pilot Deployment Program on Interstate-80 (I-80) in Wyoming, this study investigates the safety benefits of CV Work Zone Warning (WZW) applications on driver behavior during foggy weather conditions. A work zone (WZ) was simulated using VISSIM in four sequential areas, including the advance warning, transition, activity, and termination area. The effect of drivers’ increased situational awareness under the effect of WZW was calibrated in VISSIM based on the results of a high-fidelity driving simulator experiment. Various Surrogate Measures of Safety (SMoS), including Time-To-Collision (TTC), Time Exposed Time-to-collision (TET), Time-Integrated Time-to-collision (TIT), and Modified Deceleration Rate to Avoid Crash (MDRAC), were employed to quantify the safety performance of CVs under varying CV Market Penetration Rates (MPRs). According to the results of TTC and MDRAC, it was found that an increase in CV-MPR enhances the safety performance of the WZ area. Findings showed that, under foggy weather conditions, the advance warning area had the highest TIT and TET values. Furthermore, it was revealed that an increase in MPR of up to 60% on I-80 would reduce mean speeds and the standard deviation of speed at each of the WZ areas, leading to more speed harmonization and minimizing the crash risk in WZs.

Validation of a Driving Simulator for Work Zone Design

2005 ◽  
Vol 1937 (1) ◽  
pp. 136-144 ◽  
Author(s):  
Francesco Bella
Keyword(s):  
Virtual Reality ◽  
Statistical Analysis ◽  
Road Safety ◽  
Driving Simulator ◽  
Work Zone ◽  
Real Situation ◽  
Driving Experience ◽  
The Real ◽  
Transition Area ◽  
Matched Samples

The research project aimed at calibrating and validating the driving simulator of the European Interuniversity Research Center for Road Safety to enable its use for design and verification of the effectiveness of temporary traffic signs on highways. The research was developed through the following steps: ( a) a survey of speed measurements on highways next to a work zone of medium duration, ( b) reconstruction in virtual reality of the real situation by using the driving simulator and subsequent running of a series of driving tests, and ( c) statistical analysis of the field speeds and of the speeds from driving simulations for validation of the simulator. The surveyed work zone was located on Highway A1 from Milan to Naples, Italy. Speed measurements were conducted with a laser speed meter in the transition area, the activity area, and the termination area, and in the advance warning area speeds were shot with a camera from an overpass. Speed data from the field and the simulator were analyzed by using the bilateral Z-test for non-matched samples to determine whether drivers responded differently in the simulator compared with their response during the real driving experience. The activity carried out revealed that differences between the speeds observed in the real situation and those measured with the simulator were not statistically significant.

Information security in the South Australian real estate industry

2014 ◽  
Vol 22 (1) ◽  
pp. 24-41 ◽  
Author(s):  
Deepa Mani ◽  
Kim-Kwang Raymond Choo ◽  
Sameera Mubarak
Keyword(s):  
Risk Management ◽  
Information Security ◽  
Real Estate ◽  
South Australia ◽  
Security Threats ◽  
The South ◽  
Content Type ◽  
The Real ◽  
The Real Estate ◽  
Real Estate Sector

Purpose – Opportunities for malicious cyber activities have expanded with the globalisation and advancements in information and communication technology. Such activities will increasingly affect the security of businesses with online presence and/or connected to the internet. Although the real estate sector is a potential attack vector for and target of malicious cyber activities, it is an understudied industry. This paper aims to contribute to a better understanding of the information security threats, awareness, and risk management standards currently employed by the real estate sector in South Australia. Design/methodology/approach – The current study comprises both quantitative and qualitative methodologies, which include 20 survey questionnaires and 20 face-to-face interviews conducted in South Australia. Findings – There is a lack of understanding about the true magnitude of malicious cyber activities and its impact on the real estate sector, as illustrated in the findings of 40 real estate organisations in South Australia. The findings and the escalating complexities of the online environment underscore the need for regular ongoing training programs for basic online security (including new cybercrime trends) and the promotion of a culture of information security (e.g. when using smart mobile devices to store and access sensitive data) among staff. Such initiatives will enable staff employed in the (South Australian) real estate sector to maintain the current knowledge of the latest cybercrime activities and the best cyber security protection measures available. Originality/value – This is the first academic study focusing on the real estate organisations in South Australia. The findings will contribute to the evidence on the information security threats faced by the sector as well as in develop sector-specific information security risk management guidelines.

The importance of public support in the implementation of green transportation in smart cities using smart vehicle bicycle communication transport

2020 ◽  
Vol 38 (5/6) ◽  
pp. 997-1011
Author(s):  
Ning Li ◽  
Parthasarathy R. ◽  
Harshila H. Padwal
Keyword(s):  
Smart Cities ◽  
Optimization Technique ◽  
Public Support ◽  
Weather Conditions ◽  
Transport Systems ◽  
Content Type ◽  
Signaling Systems ◽  
Traffic Conditions ◽  
Green Transportation ◽  
Smart Vehicle

Purpose Smart mobility is a major guideline in the development of Smart Cities’ transport systems and management. The issue of transition into green, secure and sustainable transport modes, such as using bicycles, should be implemented in this case, along with the subjectivism of management. Design/methodology/approach The proposed technology reflects the Smart Bicycle vehicle model, which tracks cyclists and weather conditions and turns to electric motors in critical circumstances. Findings This reduces the physical load and battery consumption of cyclists which affects the Smart Cities’ ecology positively. Originality/value In Smart Vehicle Bicycle Communication Transport, the vehicle movement optimization technique is used for traffic scenarios to analyze traffic signaling systems that give better results in variable and dense traffic conditions.

Performance risk factors in SME strategic planning

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Keyword(s):  
Strategic Planning ◽  
Financial Performance ◽  
Emerging Market ◽  
Negative Influence ◽  
Positive Influence ◽  
Content Type ◽  
Political Ties ◽  
Pertinent Information ◽  
Internal Stakeholders ◽  
Business Ties

Purpose This paper aims to review the latest management developments across the globe and pinpoint practical implications from cutting-edge research and case studies. Design/methodology/approach This briefing is prepared by an independent writer who adds their own impartial comments and places the articles in context. Findings This research paper concentrates on the links between SME financial performance, business ties, and political ties. Business ties were revealed to be the fundamental microfoundations of formal strategic planning (FSP), by significantly boosting firms' financial performance. However, political ties were revealed to be something to avoid, in emerging market like Turkey, due to their distracting negative influence of firm performance. SMEs can overcome some of the disadvantages of their size by involving positive influence external parties in strategic work, to support internal stakeholders. Originality/value The briefing saves busy executives, strategists and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy-to-digest format.

Potential for optimising organisational structures in the technical due diligence for real estate transactions in Germany

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Yannis Steffen Oetken ◽  
Christian Hofstadler ◽  
Felix Meckmann
Keyword(s):  
Real Estate ◽  
Transaction Management ◽  
Due Diligence ◽  
Content Type ◽  
The Real ◽  
The Real Estate ◽  
Theoretical Approaches ◽  
Transaction Process ◽  
Organisational Structures

PurposeThe individual levels involved in real estate management are thoroughly discussed in the literature. This paper provides a structured meta-analysis of the different theoretical approaches in German-speaking countries. It also investigates the integration of transaction management and technical due diligence into the concepts of organisation theory. In this process, the interfaces are analysed and optimised models are developed for transferring the technical due diligence findings to the operational level.Design/methodology/approachInterviews with transaction management experts were conducted based on a narrative literature review. These interviews shed light on how the components of transaction management and due diligence are integrated into the transaction process, with a particular focus on technical due diligence. They also provide insights into how the related results are taken into account in relation to the transaction, and how they are transferred into the operational phase.FindingsIt becomes apparent that the role of transaction management is not clearly defined and delimited in the structural model of the real estate industry. Technical due diligence findings are usually transferred to the operation of the property via several, manual interfaces with corresponding losses of knowledge. The related models derived and developed for the purpose of operational optimisation define the role of transaction management against a technical background and identify the interfaces to be considered.Practical implicationsThe significance of transaction management for subsequent operations is discussed and elaborated on. More specifically, transferring safety-relevant, high-priority findings from the technical due diligence exercise plays a crucial role for the modelling stage. On the implementation level, the derived models serve as a basis for customising the internal organisational structure.Originality/valueIn Germany, there has hardly been any research into the involvement of technical experts in the real estate transaction process to date. This paper provides initial approaches to optimising organisational structures and sustainably integrating technical due diligence findings into real estate operations.

The impact of employment relationships on firm sustainability

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Francisco Rincon-Roldan ◽  
Alvaro Lopez-Cabrales
Keyword(s):  
Environmental Sustainability ◽  
Chief Executive Officers ◽  
Structural Equation ◽  
Chief Executive ◽  
Negative Influence ◽  
Employment Relationship ◽  
Content Type ◽  
Employment Relationships ◽  
Hr Managers ◽  
The Impact

PurposeThe aim of this study was to analyse the influence of different employment relationships (ERs) on the sustainability results of cooperatives. The authors approached the type of ER comparing the inducements offered by the firm with the contributions that the manager expects from employees. In this way, the authors study how the orientation toward the employment relationship influences the economic, social and environmental sustainability of the firm.Design/methodology/approachThis article presents a theoretical and empirical research model about the relationship between ERs and sustainability. The necessary information was obtained through a questionnaire that was completed by the human resource (HR) managers and chief executive officers (CEOs) of 124 cooperative companies, and structural equation modelling was applied to evaluate the relationships between the proposed constructs, using the partial least squares technique (PLS-SEM).FindingsThe obtained results suggest that mutual investment and overinvestment ERs favour economic, social and environmental sustainability, whereas quasi spot contract and underinvestment ERs have a negative influence on all three types of sustainability. Therefore, it is confirmed that the type of ER adopted can condition the sustainability of the company, either favouring or worsening it.Originality/valueThis work contributes to covering the lack of studies about which ERs impact the sustainability of organisations, and it provides information on the role of ERs in the search for a more sustainable organisation, demonstrating that the type of employment relationship developed by the firm has a relevant impact on its sustainability.

Value in vehicles: economic assessment of automotive data

2018 ◽  
Vol 20 (6) ◽  
pp. 513-527
Author(s):  
Alexander M. Soley ◽  
Joshua E. Siegel ◽  
Dajiang Suo ◽  
Sanjay E. Sarma
Keyword(s):  
Model Performance ◽  
Economic Assessment ◽  
Connected Vehicle ◽  
Data Generation ◽  
Content Type ◽  
Monetary Value ◽  
Vehicle Data ◽  
Data Market ◽  
Data Stewardship ◽  
Value Model

Purpose The purpose of this paper is to develop a model to estimate the value of information generated by and stored within vehicles to help people, businesses and researchers. Design/methodology/approach The authors provide a taxonomy for data within connected vehicles, as well as for actors that value such data. The authors create a monetary value model for different data generation scenarios from the perspective of multiple actors. Findings Actors value data differently depending on whether the information is kept within the vehicle or on peripheral devices. The model shows the US connected vehicle data market is worth between US$11.6bn and US$92.6bn. Research limitations/implications This model estimates the value of vehicle data, but a lack of academic references for individual inputs makes finding reliable inputs difficult. The model performance is limited by the accuracy of the authors’ assumptions. Practical implications The proposed model demonstrates that connected vehicle data has higher value than people and companies are aware of, and therefore we must secure these data and establish comprehensive rules pertaining to data ownership and stewardship. Social implications Estimating the value of data of vehicle data will help companies understand the importance of responsible data stewardship, as well as drive individuals to become more responsible digital citizens. Originality/value This is the first paper to propose a model for computing the monetary value of connected vehicle data, as well as the first paper to provide an estimate of this value.

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