2013 Session: 776

• What Makes Traffic Violations Become Habitual: Impacts of Individual Attitudes, Norms, and Perceived Behavioral Control on Repetitive Traffic Violation Behaviors Among Motorcyclists
  Abstract: The traffic situation in urban road is worse in Southeast Asian countries, where the motorcycle is becoming majority and breaking the traffic law is becoming common. This study aims to explore the effects of individual attitudes, habits, preferences, and travel behaviour of motorcyclists on their repetitive traffic violations among motorcyclists using data from three metropolitan cities in Indonesia (Bandung, Yogyakarta, and Surabaya). Theory of planned behaviour and the structural equation modelling are employed to detangle these relationships. The study results show that individual’s believes and attitudes, social norms, and his/her perceived behaviour control are significantly influenced the individual’s repetitive violation behaviours with social norm as the strongest influencing factor. Males, youngsters, or educated people are found to be the ones who more likely to violate the traffic regulation frequently. In designing behavioural change policy, it is important to note that the individual’s driving style and their traffic law obedience are the ones that mostly related with the individual’s believes and attitudes, whilst not respecting other drivers on the streets and speeding in residential area are the most influencing social norm. The road geometric, traffic volume, and the number of road lanes are the ones that mostly influence individual’s perceived behavioural control. Furthermore, pushing the motorcycle to a (very) narrow gap, blocking other vehicle, and speeding are the top three most frequent violations which construct of individuals’ repetitive violation behaviours in Indonesia.
  Authors: Susilo, Yusak Octavius; Joewono, Tri Basuki
  Authors: Susilo, Yusak Octavius; Joewono, Tri Basuki
  Year: 2013
  Document Type: Paper
  Subject: Policy; Safety and Human Factors
  Session: 776
  Paper Number: 13-1071
• Powered Two-Wheeler Rider Eye-Height Determination
  Abstract: Vehicle driver and powered two-wheeler (PTW) rider eye-height is one of the key factors in highway design, as they can determine sight distances, one of the key factors in geometric design. Different vehicle types and driving conditions can affect the eye-height. While a large number of studies have focused on the determination of passenger car and truck driver eye-height, only a small number of studies have attempted to determine the eye-height of two-wheelers. The objective of this research is to investigate the parameters that affect PTW rider eye-height and determine appropriate values.A multiple-camera experimental design was developed for the measurement of PTW eye-height. Two arteries with different characteristics (one freeway and an urban arterial) were chosen for the data collection. The collected data are analyzed and conclusions are drawn regarding the rider eye-height for different PTW types and classes. The relation between eye-height and speed is specifically investigated and it is concluded that rider eye-height is not negatively correlated with PTW speed. Directions for future research are outlined; these include additional studies under different conditions the collection of richer data sets (e.g. including data on the riders and the PTWs).
  Authors: Dimoulas, Stergios; Psarianos, Basil M.; Antoniou, Constantinos; Vardaki, Sophia
  Authors: Dimoulas, Stergios; Psarianos, Basil M.; Antoniou, Constantinos; Vardaki, Sophia
  Year: 2013
  Document Type: Paper
  Subject: Policy; Safety and Human Factors
  Session: 776
  Paper Number: 13-1784
• Understanding the Use of Powered Two-Wheelers Within an Australian Capital City: Case of Melbourne’s Central Business District
  Abstract: Increasing concerns over traffic congestion, safety, availability of energy sources and environmental issues such as pollution and climate change have led to growing interest in sustainable urban transport. These challenges arise from the rapid growth of motor vehicle ownership and use in urban areas. While most of the focus has been on motorcars, the role, use and sustainability impacts of mopeds, motor scooters and motorcycle, collectively termed, Powered Two Wheelers (P2Ws), have received relatively little attention by comparison.Sales of P2Ws in Australian cities have grown rapidly during the last decade, but there is little knowledge of their usage patterns. This paper presents a number of insights into the trip and vehicle characteristics of P2W in Melbourne’s CBD. An extensive patrol survey was undertaken in Melbourne’s Central Business District (CBD) to gain understanding into the role of P2Ws as a mode of transport.This paper illustrates how a range of transport planning information can be gained by combining data from a large scale observational survey with other datasets. A parking patrol survey provided details of the accumulation and parking durations of P2W on footpaths and in median parking areas. Combining the observational data with land use, registration, census and public transport data allowed trip generation, production and journey distance relationships to be developed. Such information can be used for developing policies relating to the provision and pricing of P2W parking facilities as well as management pedestrian areas in Melbourne’s CBD.
  Authors: Thompson, Russell George; Rose, Geoffrey
  Authors: Thompson, Russell George; Rose, Geoffrey
  Year: 2013
  Document Type: Paper
  Subject: Policy; Safety and Human Factors
  Session: 776
  Paper Number: 13-3597
• Motorcycle and Motorscooter Use in Victoria, Australia
  Abstract: Given that they are overrepresented in crash statistics around the world, it is perhaps not surprising that much of the research and government policy attention on Powered-Two-Wheel (PTW) vehicles is focussed on road safety issues. Understanding of the potential role that these vehicles can play as an urban travel option in the context of sustainable transport, is limited. This paper addresses the need for better knowledge about the utilitarian use of this class of vehicle by examining the usage patterns and demographics of riders in Victoria, Australia. The analysis draws on a special survey of PTW uses that was conducted in conjunction with a major household travel survey. Since respondents indicated whether their PTW was a motor scooter or motorcycle, it has been possible to segment the analysis on the basis of the type of PTW as well as the purpose of travel and demographics of the rider (particularly age and gender). Cross tabulations and hypothesis testing provides insight into important differences across subgroups and logistic regression models are used to examine the factors which are correlated with whether a motor scooter or motorcycle is the most likely PTW to have been used for a particular journey. The riders’ gender, age and the distance to be ridden are found to be significant explanatory variables. The results not only provide insight into the use of PTW vehicles for utilitarian travel but also into the factors which help to explain differences in the patterns of use of motor scooters versus motor cycles.
  Authors: Amani Jordehi, Babak; Rose, Geoffrey; Thompson, Russell George
  Authors: Amani Jordehi, Babak; Rose, Geoffrey; Thompson, Russell George
  Year: 2013
  Document Type: Paper
  Subject: Policy; Safety and Human Factors
  Session: 776
  Paper Number: 13-3615
• What Makes Traffic Violations Become Habitual: Impacts of Individual Attitudes, Norms, and Perceived Behavioral Control on Repetitive Traffic Violation Behaviors Among Motorcyclists
  Authors: Susilo, Yusak
  Authors: Susilo, Yusak
  Year: 2013
  Document Type: Presentation
  Subject: Policy; Safety and Human Factors
  Session: 776
  Paper Number: 13-1071
• Powered Two-Wheeler Rider Eye-Height Determination
  Authors: Antoniou, Constantinos
  Authors: Antoniou, Constantinos
  Year: 2013
  Document Type: Presentation
  Subject: Policy; Safety and Human Factors
  Session: 776
  Paper Number: 13-1784
• Understanding the Use of Powered Two-Wheelers Within an Australian Capital City: Case of Melbourne's Central Business District
  Authors: Rose, Geoffrey
  Authors: Rose, Geoffrey
  Year: 2013
  Document Type: Presentation
  Subject: Policy; Safety and Human Factors
  Session: 776
  Paper Number: 13-3597