scholarly journals ANALYSIS OF COMMUTERS' PERCEPTIONS ABOUT CARPOOLING SERVICE: A CASE STUDY IN LAHORE

2020 ◽  
Vol 29 (2) ◽  
pp. 9-16
Author(s):  
Muhammad Ashraf Javid ◽  
Nazam Ali
Keyword(s):  
Traffic Congestion ◽  
Vehicle Ownership ◽  
Probit Regression ◽  
Road Crashes ◽  
Trip Purpose ◽  
Road Users ◽  
Significant Relationships ◽  
Willingness To Adopt ◽  
Lahore City

The increase in urban population and private vehicle ownership has resulted in traffic congestion on road networks. The traffic congestion tends to increase social cost in terms of increased travel delays, road crashes and environmental pollution. Traffic congestion also increases the generalized travel cost of road users. There is a need to look for alternative travel options to ensure sustainable development of the society and transportation infrastructure. This study aims to identify the significant relationships between the socio-economic demographics (SEDs) of the travelers and their intentions with carpooling. The data was collected with the help of a questionnaire survey. This survey was conducted in Lahore city and three hundred and ninety four samples were obtained. The data was analyzed using frequency analysis and ordered probit regression analysis. The results revealed that the traveler’s marital status, education, daily trip distance, current travel mode, household income, car ownership and possession of a driving license had a significant influence on their willingness to adopt a carpooling alternative. Besides the trip, purpose of carpooling and the number of persons with whom to share a ride had significant correlations with carpooling. These significant attributes implicate that travelers’ specific characteristics play an important role in their decision to carpool. Carpooling programs are required to design, seeking the significant characteristics of travelers in the context of Lahore city as well as in other regions. These findings provide useful information to the transport planners and decision-makers in designing the transportation policies related to carpooling strategies.

scholarly journals Management of Speeding Comparing Two Applied Engineering Measures

2013 ◽  
Vol 4 (3) ◽  
pp. 10-14
Author(s):  
Zuhair Ebrahim ◽  
Hamid Nikraz
Keyword(s):  
Harm Minimisation ◽  
Crash Data ◽  
Road Crashes ◽  
Road Users ◽  
Engineering Measures ◽  
Vulnerable Road Users

Abstract The importance of safety comes from the responsibility towards protecting the vulnerable road users, who seem to be the victims in most road crashes. Thus, authorities tend to focus on reducing the travelling speed of the vehicles, whereas some road users may consider the move to interfere with mobility. In this study, a case study in Perth’s two roads was conducted to compare two engineering treatments of speed reductions on these two busy shopping strips. The study aim is to illustrate the effect of using the electronic flashing signs rather than the standard signs in terms of speeding reduction and harm minimisation. Crash data were analysed and supported the safety benefits of the electronic flashing signs. Authorities have measured the reduction of the travelling speeds of vehicles and found it to be encouraging. There are clear, positive safety benefits from the study in terms of engineering and enforcement measures

scholarly journals Vehicle Accident Report Application for Solving Traffic Problems and Reduce the Ratio of Pollution using Case Study: Kuwait City

2018 ◽  
Vol 10 (1) ◽  
pp. 380
Author(s):  
Abdulrahman Alkandari ◽  
Samer Moein
Keyword(s):  
Cost Estimation ◽  
Traffic Congestion ◽  
Traffic Accidents ◽  
Research Team ◽  
Level Of Service ◽  
The Road ◽  
Vehicle Accident ◽  
Road Users ◽  
Lost Time

<span lang="EN-US">Minor traffic accidents have become a major problem facing the road users in the recent years, according to the statistics from the Ministry of Interior (MOI) in Kuwait there were recorded 80,388 accidents by the year 2014. Accidents not only affect the mobility but also contribute to air pollution and slow down economic growth. These effects are the result of the seriously extended trips travel time due to accumulated vehicles queue. In some accidents cases, the lost time waiting for the arrival of the traffic officers and filling up the accident report could take up to 45 minutes. The new idea of Vehicle Accident Report application (I-VAR) concept developed by the research team would reduce the waiting time up to 3 minutes (93% savings), which would increase the level of service of the segment of a roadway. In addition, the study will be discussed four major situations on some of the busiest roads in Kuwait. Specifically, gas emissions and cost estimation. Improve the pollution obviously, by using the (I-VAR) application for the minor accidents there is an amount of 360,776,460 K.D would be saved yearly from the Kuwait government funds. It is a consequence of the huge savings in alleviating traffic congestion and generally produces more saver and efficient travel conditions.</span>

scholarly journals A Critical Review of Policies on Pedestrian Safety and a Case Study of New Zealand

2019 ◽  
Vol 11 (19) ◽  
pp. 5274 ◽  
Author(s):  
Ajjima Soathong ◽  
Douglas Wilson ◽  
Prakash Ranjitkar ◽  
Subeh Chowdhury
Keyword(s):  
New Zealand ◽  
Critical Review ◽  
Road Safety ◽  
Pedestrian Safety ◽  
Road Crashes ◽  
The Road ◽  
Road Users ◽  
Pedestrian Crashes ◽  
The Impact

Vulnerable road users contribute to nearly half of road deaths globally. In New Zealand, this group accounts for 26% of road deaths, which includes 8% of pedestrian crashes. This paper provides a critical review of the road safety policies from the pedestrian’s viewpoint for some of the best performing countries and discusses their effectiveness for the future. A case study is conducted for New Zealand to identify factors contributing to the pedestrian crashes and investigate the impact of the road safety policies on pedestrian crash trends. The policies are predominantly well informed by evidence-based approaches contributing to an overall reduction in the number of road crashes. However, little attention has been paid on pedestrian behaviour related to crashes. Finally, the paper makes recommendations for improving pedestrian safety to enable better safety outcomes that are closer to vision zero.

ANALISIS PENGARUH PENDAPATAN TERHADAP KEPEMILIKAN MOBIL DAN SEPEDA MOTOR PADA RUMAH TAGGA DI SEPANJANG KORIDOR TRAYEK TRANS SARBAGITA

1970 ◽  
Author(s):  
I B. Wirahaji ◽  
D. M. Priyantha Wedagama ◽  
P. Alit Suthanaya
Keyword(s):  
Traffic Congestion ◽  
Household Income ◽  
Secondary Data ◽  
Motor Vehicles ◽  
Car Ownership ◽  
Vehicle Ownership ◽  
Trip Purpose ◽  
Logit Regression ◽  
Income Family ◽  
Multinomial Logit Regression

Sarbagita region is currently facing problems such as traffic congestion roads. High private vehicle ownership has a direct impact on the community in using public transport. Secondary data are extensively used in this study are from selected households along the corridor in 4 (four) Trans Sarbagita service. The data used is household income, family composition (number of members, workers, and students), ownership of motor vehicles (the number of cars and motorcycles), trip purpose (work, school and shopping). Statistical Package for Social Science (SPSS) version 20 software is used to perform a multinomial logit regression. In addition, GDP and inflation for 5 (five) years in Denpasar and Badung regency which is used to estimate the household income during the next 20 years. Analysis shows that household income <Rp. 3 million have increased the probability of car ownership and car 1 ? 0 motorcycle. In 2017 and 2032, this income affect household vehicle ownership respectively 36.4% and 46.5%. Meanwhile, the influence of household income of Rp. 3-5 million increase for type 0 cars and motorcycles ? 0 and 1 ? 0 cars and motorcycles. In 2017 and 2032, household income affect the ownership of the vehicle amounted to 34.6% and 38.7%. In 2017 and 2032, household income affect the ownership of the vehicle from one car and motorcycle ? 0, respectively by 33.9% and 35.3%.

scholarly journals Attraction of Bus Rapid Transit (BRT) for Car and Bike Owners

2020 ◽  
Vol 9 (1) ◽  
pp. 1-21
Author(s):  
Malik Muneeb Abid ◽  
Altaf Ayaz ◽  
Nabeel Nawaz ◽  
Muhammad Iqbal ◽  
Hongtai Yang ◽  
...  
Keyword(s):  
Traffic Congestion ◽  
Choice Model ◽  
Stated Preference ◽  
Multinomial Logistic Regression ◽  
Major Effect ◽  
Bus Rapid Transit ◽  
Rapid Transit ◽  
Vehicle Ownership ◽  
Trip Purpose ◽  
Residence Location

Abstract This study aims to find the potential of Bus Rapid Transit (BRT) to attract the vehicle owners from their personal vehicles i.e., motorcars and motorcycles. Stated preference survey (questionnaires) and interviews were conducted at BRT (Metro Bus) Stations for the prediction of the individuals shifting from their private vehicles to BRT. Questions were designed critically as per the requirements of the research related to numerous aspects of BRT use i.e., vehicle ownership of the travelers, driving license holder, demographic characteristics, choice to use BRT if the fare increases, trip purpose and their prior mode of transportation for the same trip. A total of 374 responses, as per the population of the study area (Islamabad-Rawalpindi, Pakistan), were collected. The Multinomial Logistic Regression (MNL) model has been employed for four categories of vehicle ownerships i.e., “Car owners using BRT”, “Bike owners using BRT”, “Both Car and Bike owners using BRT” and the last one which has been taken as reference category is “BRT users with no vehicle ownership”. The analysis indicated that BRT has attracted considerably private vehicle users specially the bike owners. Some socio-economic factors like income and residence location (accessibility) additionally have a major effect on the selection of BRT. In addition, it has been observed that fare increase can alter the mode choice of the BRT users and they will again prefer their own vehicles. The Travel choice model developed in the study can be very useful for policy makers and transport planners to enhance the BRT service and attraction, to mitigate traffic congestion and car ownership.

scholarly journals Development and Evaluation of Geostatistical Methods for Estimating Weather Related Collisions: A Large-Scale Case Study

2021 ◽  
pp. 036119812110200
Author(s):  
Andy H. Wong ◽  
Tae J. Kwon
Keyword(s):  
Large Scale ◽  
Mean Squared Error ◽  
Hot Spot ◽  
High Ratio ◽  
Contributing Factors ◽  
Geostatistical Methods ◽  
Road Users ◽  
Statistical Measures ◽  
Weather Events

Winter driving conditions pose a real hazard to road users with increased chance of collisions during inclement weather events. As such, road authorities strive to service the hazardous roads or collision hot spots by increasing road safety, mobility, and accessibility. One measure of a hot spot would be winter collision statistics. Using the ratio of winter collisions (WC) to all collisions, roads that show a high ratio of WC should be given a high priority for further diagnosis and countermeasure selection. This study presents a unique methodological framework that is built on one of the least explored yet most powerful geostatistical techniques, namely, regression kriging (RK). Unlike other variants of kriging, RK uses auxiliary variables to gain a deeper understanding of contributing factors while also utilizing the spatial autocorrelation structure for predicting WC ratios. The applicability and validity of RK for a large-scale hot spot analysis is evaluated using the northeast quarter of the State of Iowa, spanning five winter seasons from 2013/14 to 2017/18. The findings of the case study assessed via three different statistical measures (mean squared error, root mean square error, and root mean squared standardized error) suggest that RK is very effective for modeling WC ratios, thereby further supporting its robustness and feasibility for a statewide implementation.

scholarly journals Operational and Safety Management at Intersections: Can the Turbo-Roundabout Be an Effective Alternative to Conventional Solutions?

2021 ◽  
Vol 13 (9) ◽  
pp. 5103
Author(s):  
Vincenzo Gallelli ◽  
Giusi Perri ◽  
Rosolino Vaiana
Keyword(s):  
Traffic Congestion ◽  
Safety Management ◽  
Environmental Benefits ◽  
Assessment Model ◽  
Pollutant Emission ◽  
Emission Rates ◽  
The European Union ◽  
European Union Policy ◽  
Union Policy

The European Union policy strategies on the sustainability of the transport system pursue the goals of maximizing safety and environmental benefits and reducing the severity and frequency of crashes, congestion, and pollutant emission rates. A common issue is the planning of the most effective solution for operational and safety management at intersections. In this study, an egg turbo roundabout is proposed as the alternative solution to a conventional roundabout in Southern Italy which suffers from traffic congestion. A comparative analysis is carried out using microsimulation techniques to investigate the safety effects and operational improvements of converting a traditional priority intersection into standard roundabout or turbo roundabout layout. In particular, the VISSIM software is used to explore the most relevant operational performance measures: queue length, travel times and delays. The lowest values of these measurements are recorded for the simulated turbo roundabout, thus making this scheme more appropriate in terms of operational performances. With regard to safety analysis, the Surrogate Safety Assessment Model (SSAM) is used to collect information on the predicted number of conflicts, the probability, and severity of the potential collisions. The results suggest that, for the specific case study, the safety levels of the standard roundabout and the turbo roundabout are approximately comparable.

scholarly journals A Method for Assessing Threats to the Economic Security of a Region: A Case Study of Public Procurement in Russia

Risks ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 10
Author(s):  
Valentina Kravchenko ◽  
Tatiana Kudryavtseva ◽  
Yuriy Kuporov
Keyword(s):  
Regression Models ◽  
Public Procurement ◽  
Ordinary Least Squares ◽  
Economic Security ◽  
Government Procurement ◽  
Security Monitoring ◽  
Significant Relationships ◽  
Monitoring Tools ◽  
Russian Region

The issue of economic security is becoming an increasingly urgent one. The purpose of this article is to develop a method for assessing threats to the economic security of the Russian region. This method is based on step-by-step actions: first of all, choosing an element of the region’s economic security system and collecting its descriptive indicators; then grouping indicators by admittance-process-result categories and building hypotheses about their influence; testing hypotheses using a statistical package and choosing the most significant connections, which can pose a threat to the economic security of the region; thereafter ranking regions by the level of threats and developing further recommendations. The importance of this method is that with the help of grouping regions (territory of a country) based on proposed method, it is possible to develop individual economic security monitoring tools. As a result, the efficiency of that country’s region can be higher. In this work, the proposed method was tested in the framework of public procurement in Russia. A total of 14 indicators of procurement activity were collected for each region of the Russian Federation for the period from 2014 to 2018. Regression models were built on the basis of the grouped indicators. Ordinary Least Squares (OLS) Estimation was used. As a result of pairwise regression models analysis, we have defined four significant relationships between public procurement indicators. There are positive connections between contracts that require collateral and the percentage of tolerances, between the number of bidders and the number of regular suppliers, between the number of bidders and the average price drop, and between the number of purchases made from a single supplier and the number of contracts concluded without reduction. It was determined that the greatest risks for the system were associated with the connection between competition and budget savings. It was proposed to rank analyzed regions into four groups: ineffective government procurement, effective government procurement, and government procurement that threatens the system of economic security of the region, that is, high competition with low savings and low competition with high savings. Based on these groups, individual economic security monitoring tools can be developed for each region.

scholarly journals Post-COVID-19 travel behaviour patterns: impact on the willingness to pay of users of public transport and shared mobility services in Spain

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Samir Awad-Núñez ◽  
Raky Julio ◽  
Juan Gomez ◽  
Borja Moya-Gómez ◽  
Julián Sastre González
Keyword(s):  
Willingness To Pay ◽  
Public Transport ◽  
Nationwide Survey ◽  
Travel Behaviour ◽  
Revealed Preferences ◽  
Trip Purpose ◽  
Willingness To Adopt ◽  
Shared Mobility ◽  
Considerable Impact ◽  
Willingness To Use

Abstract Background The COVID-19 crisis has meant a significant change in the lifestyle of millions of people worldwide. With a lockdown that lasted almost three months and an impulse to new normality, transport demand has suffered a considerable impact in the Spanish case. It is mandatory to explore the effect of the pandemic on changes in travel behaviour in post-COVID-19 times. Methodology A nationwide survey was carried out during the lockdown in Spring 2020 to overview the recent changes. The survey collected both stated preferences (socio-demographic characteristics and mobility-related attributes), and revealed preferences (individuals’ habits, especially in the frequency of the trips according to the trip purpose, and opinions regarding the willingness and acceptability of these changes, and which actors would have to drive them, and how) of individuals. This paper aims to study and understand the willingness to adopt a set of measures to improve the safety conditions of public transport and shared mobility services against possible contagion from COVID-19 and the willingness to pay for them. Results The results obtained show that some measures, such as the increase of supply and vehicle disinfection, result in a greater willingness to use public transport in post-COVID-19 times. Similarly, the provision of covers for handlebars and steering wheels also significantly increases individuals’ willingness to use sharing services. However, respondents expect that these measures and improvements would be implemented but maintaining the same pre-COVID-19 prices. The results of this research might help operators deploy strategies to adopt their services and retain users.

scholarly journals Evaluation of the Applicability of the Ramp Metering to a Freeway Using Microsimulation: A Case Study in Riyadh, Saudi Arabia

2019 ◽  
Vol 9 (20) ◽  
pp. 4406
Author(s):  
Seongkwan Lee ◽  
Amr Shokri ◽  
Abdullah Al-Mansour
Keyword(s):  
Saudi Arabia ◽  
Traffic Congestion ◽  
Traffic Management ◽  
Fixed Time ◽  
Ramp Metering ◽  
Traffic Data ◽  
Geometrical Data ◽  
Overall Performance ◽  
Length Reduction

Riyadh, the capital of Saudi Arabia, suffers from traffic congestion like other modern societies, during peak hours but also all day long, even without any incidents. To solve this horrible traffic congestion problem, various efforts have been made from the Active Traffic Management (ATM) aspect. Ramp metering (RM) is one of the representative methods of the ATM and has already proven its value in many locations worldwide. Unfortunately, RM has not yet been fully implemented in Saudi Arabia. This research aimed to assess the applicability of RM to a freeway in Riyadh using microsimulation. The widely known software VISSIM (PTV Planung Transport Verkehr AG, Germany, 1992) was chosen to compare the performances of various RM operating scenarios, such as fixedtime operation with different sub-scenarios and traffic-responsive operation using ALINEA (Asservissement Lineaire d’entree Autoroutiere) algorithm. For the simulations, this study targeted Makkah Road, one of the major freeways in Riyadh, and collected geometrical data and traffic data from that freeway. Analysis of four main scenarios and eight sub-scenarios, proved that overall performance of the fixed-time RM operation is generally good. The sub-scenario 4V3R of the fixed-time RM operation was the best in average queue length reduction. However, the traffic-responsive operation was best in average speed improvement.

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