2013 Session: 842

• Incorporating Intrahousehold Interactions into Tour-Based Model of Public Transport Use in Car-Negotiating Households
  Abstract: Intra-household interactions in travel constitute a fundamental aspect in understanding activity-travel behaviour, as reflected by the substantial percentage of regional travel which is made jointly. The development of travel demand models incorporating intra-household interactions are crucial to providing a more credible analysis of travellers’ response to policies and this paper contributes by examining intra-household interactions in travel mode choice using a tour-based modelling framework with a particular focus on public transport use in households with differences in car availability. An important distinction is made between car-sufficient households (where there are at least as many cars in the household as licence holders) and car-negotiating households (households with fewer cars than licence holders). Intra-household interactions and temporal-spatial constraints are explicitly represented by different patterns of joint household tours, using home-based tours as the unit of analysis. The empirical analysis is based on a nested logit model which is developed to integrate intra-household interactions with tour-based mode choices, using the Sydney Household Travel Survey data. The results show that joint household travel account for more than half of weekday home-based tours in Sydney. The arrangement of joint household tours is shown to depend on household context, situational factors, and social constraints. Mode choice associated with different joint tour patterns are influenced by household and individual characteristics, tour attributes, and transport-related fringe benefits.
  Authors: Ho, Chinh
  Authors: Ho, Chinh
  Year: 2013
  Document Type: Paper
  Subject: Planning and Forecasting
  Session: 842
  Paper Number: 13-0039
• Structure of Joint Leisure Trips: Analyzing the Leisure Trips of Dutch Students
  Abstract: This paper investigates the spatial structure of students’ leisure trips and to what extent locational characteristics of social network partners influence decisions about their joint leisure activities and travel. To this end a survey was held among university students asking them about details of their last leisure trip made with a friend. Cluster analysis suggests that four typical leisure trip patterns can be derived. Three clusters seem to be determined by the residential locations of ego and alter. Depending on the residential distance between ego and alter, leisure trip distances are either short for ego and alter (if residential distance is very short), somewhat longer for both (if residential distance is slightly longer) or long for at least one partner (if residential distance is large). A fourth cluster includes cases with long leisure trips for both partners, independent of residential distance, representing cases where specific destinations are visited. A more detailed analysis of travel distance suggests that travel distance depends on size of the residential municipality, residential distance and objective and perceived quality of leisure facilities such as cafés, bars and restaurants. Overall, our study provides support for the idea that leisure trip decisions should be understood on the level of social network ties (i.e. ego and alter) rather than based on individual characteristics only. Also, it provides support for the idea that a focus on single ties, rather than on the structure of social networks as a whole, increases our insight in leisure trip decision making.
  Authors: Ettema, Dick
  Authors: Ettema, Dick
  Year: 2013
  Document Type: Paper
  Subject: Planning and Forecasting
  Session: 842
  Paper Number: 13-0781
• Model for Work Activity Schedules with Synchronization for Multiple-Worker Households
  Abstract: This paper presents a hybrid discrete choice-duration model for work activity scheduling with interactions between workers in a multiple-worker household. The model operates in discrete space with a fine level of temporal resolution. Main innovative component relates to intra-household interactions that are expressed in coordination and synchronization mechanisms between the workers. The model was estimated based on a large Household Travel Survey in the San Francisco Bay Area. The estimation results confirmed strong intra-household interactions including synchronizations for outbound and inbound commute as well as creating overlaps of available time windows for joint activities before and after work. Relative strength of the synchronization mechanisms proved to be a function of the person characteristics and household composition.
  Authors: Vovsha, Peter; Gupta, Surabhi
  Authors: Vovsha, Peter; Gupta, Surabhi
  Year: 2013
  Document Type: Paper
  Subject: Planning and Forecasting
  Session: 842
  Paper Number: 13-1844
• Multistate Supernetwork Framework for Two-Person Joint Travel Problem
  Abstract:

  Most travel behavior studies on route and mode choice focus only on an individual level. This paper adopts the concept of multi-state supernetworks to model the two-person joint travel problem (JTP). Travel is differentiated in terms of activity-vehicle-joint states, i.e. travel separately or jointly with which transport mode and with which activities conducted. In each state, route choice can be addressed given the state information and travel preference parameters. The joint travel pattern space is represented as a multi-state supernetwork, which is constructed by assigning the individual and joint networks to all possible states and connecting them via transfer links at joints where individuals can meet or depart. Besides route choice, the choices of where and when to meet, and which transport mode(s) to use can all be explicitly represented in a consistent fashion. A joint path through the supernetwork corresponds to a specific joint travel pattern. Then, JTP is reduced to an optimization problem to find the joint path with the minimum disutility. Three standard shortest path algorithm variants are proposed to find the optimal under different scenarios. The proposed framework further indicates the feasibility of multi-state supernetworks for addressing high dimensional problems and contributes to the design of a next generation of joint routing systems.

  Authors: Liao, Feixiong; Arentze, Theo A.; Timmermans, Harry J.P.
  Authors: Liao, Feixiong; Arentze, Theo A.; Timmermans, Harry J.P.
  Year: 2013
  Document Type: Paper
  Subject: Planning and Forecasting
  Session: 842
  Paper Number: 13-2764
• Incorporating Intrahousehold Interactions into Tour-Based Model of Public Transport Use in Car-Negotiating Households
  Authors: Ho, Chinh
  Authors: Ho, Chinh
  Year: 2013
  Document Type: Presentation
  Subject: Planning and Forecasting
  Session: 842
  Paper Number: 13-0039
• Structure of Joint Leisure Trips: Analyzing the Leisure Trips of Dutch Students
  Authors: Ettema, Dick
  Authors: Ettema, Dick
  Year: 2013
  Document Type: Presentation
  Subject: Planning and Forecasting
  Session: 842
  Paper Number: 13-0781
• Multistate Supernetwork Framework for Two-Person Joint Travel Problem
  Authors: Arentze, Theo
  Authors: Arentze, Theo
  Year: 2013
  Document Type: Presentation
  Subject: Planning and Forecasting
  Session: 842
  Paper Number: 13-2764
• Model for Work Activity Schedules with Synchronization for Multiple-Worker Households
  Authors: Vovsha, Peter
  Authors: Vovsha, Peter
  Year: 2013
  Document Type: Presentation
  Subject: Planning and Forecasting
  Session: 842
  Paper Number: 13-1844