Abstract This paper investigates trends in the travel behaviour of young adults Germany, France, Great Britain, Japan, Norway, and USA over past few decades with a focus on car availability travel. The trend analysis relies micro-data from 20 National Travel Surveys study countries dating back to mid-1970s. survey data is supplemented by official statistics licence holding. On this basis, compiles body evidence for changes mobility patterns among industrialized decades. findings indicate...

In response to insufficient understanding of the determinants change in e-shopping behaviors during COVID-19 pandemic developing countries, this paper used data from 355 respondents, collected Hanoi social distancing period (April 2020), explore factors associated with shopping online more frequently (i.e., representing growth e-shopping) for five product types (food, medical products, clothing, electronics, and books) Hanoi, Vietnam. The results showed that nearly 80% respondents engaged...

The rapid and widespread of COVID-19 has caused severe multifaceted effects on society but differently in women men, thereby preventing the achievement gender equality (the 5th sustainable development goal United Nations). This study, using data 355 teleworkers collected Hanoi (Vietnam) during first social distancing period, aims at exploring how (dis)similar factors associated with perception preference for more home-based telework (HBT) male versus female peers are. findings show that 56%...

Abstract In this paper we challenge the prevailing practice of conducting one‐off cross‐sectional mobility surveys, making a case for change on basis usefulness and cost‐effectiveness. We believe that urban areas over say, one million inhabitants, should collect data continuous as part their efforts to guarantee sustainable development. This would allow them gain proper understanding pressing environmental transport‐related issues today's world, well effects economic growth price (especially...

The global positioning system (GPS) has motivated rapid advances in mobility data collection. A massive amount of spatio-temporal information made it possible to know where a person was and when, but not how why (s)he travelled, creating the need for inference models. Compared with mode detection, purpose imputation been insufficiently studied. However, relative lack attention identification does mean that this field emerged. For paper, which is first review dedicated inferring trip purposes...

Abstract Nationwide Transport Surveys and Time‐Use both reflect the daily agendas schedules of reporting individuals should therefore yield comparable indicators travel behaviour; for instance: immobility rate (share persons not leaving home on any one day), time, number trips per day. These two surveys exist in three countries from same time period: Belgium, France, Great Britain. The comparisons demonstrate that they tell parallel stories, but levels variables are significantly different...

This paper discusses available household survey data on long-distance travel (LDT) and presents harmonized figures LDT in Europe. First, there is a comparison of the results different surveys about LDT. The findings this have important implications for methodology surveying LDT: conventional mobility diary are better than capturing journeys up to 200 km. perform only beyond 400 Second, first internationally comparable demand These been compiled by using sources information, avoiding...

Recently, there has been an increasing interest in targeting the safety of bus operations worldwide; however, little is known about determinants crash severity developing countries. By estimating ordered logit model using bus-involved collision data Hanoi (Vietnam), spanning period from 2015 to 2019, this study investigates various factors associated with severity. The results reveal that risk increases for (1) large buses, (2) raining conditions, (3) evening or night, (4) sparse traffic,...

Response rates have been continuously declining in most countries for many decades. Therefore, the risk of selectivity and response bias are steadily increasing. During workshop, we discussed use different lists based on sampling frames, as this can greatly improve efficiency data collection. However, impact weighting procedure must be considered. The study nonresponse mechanism is fundamental representativeness sample respondents. Furthermore, soft refusal not limited to reporting any trips...

Abstract Ageing of the population, urban sprawl and car dependency will change travel patterns. The main objective this paper is to give elements for a better understanding impact changing demographics on long‐term evolution daily mobility using demographic‐based models forecast, elderly car‐ownership, trip frequency, distance travelled, average distance. A second measure tendencies observed appearance new needs demand such as rapid increase demand‐responsive transport. compares two...

Bussiere (Yves), Armoogum (Jimmy), Madre (Jean-Loup). - i Hacia la saturacion ? Un anali- sis demografico del equipamiento automovilistico de los hogares en tres regiones ur- banas Partiendo limites alcance dinamico modelos clasicos, que a menudo se basan una estimacion transversal efectos renta, autores elaboran un analisis longitudinal basado el seguimiento comportamiento generaciones sucesi- vas lo largo su ciclo vida. El articulo ofrece sintesis las proyecciones plazo motorizacion...

This paper reports on methods used to correct nonresponse for daily mobility in the French National Personal Transportation Surveys. A two-stage technique was unit nonresponse: 1) post-stratification according households' characteristics related response behavior; and 2) correction sampling error by calibration margins. Imputation procedures (e.g., deductive, regression based, hot-deck) were also item nonresponse. These maintained consistent relationships among main variables describing...

Abstract The aim of the present study is to evaluate possible extent modal shifts from car use 'alternative modes' (public transport, cycling, walking) without any change in individual patterns activity. Its approach based on a transfer procedure that allows simulation maximal potential market for transport modes other than private car. method repeated iterations model assigns journeys automobile number improved public scenarios. Demand channelled towards (walking, cycling), and combination...

During this workshop on "representativeness in surveys: challenges and solutions" for mobility surveys, we discussed various issues of representativeness travel surveys. Issues such as lack coverage sampling frames, nonresponse mechanism measurement error bias were investigated along with models that can help to reduce the impacts these preserve data quality transport analysis. According participants workshop, best way avoid problems surveys is tackle problem upstream (good frame, follow-up...

This paper presents a method for enhancing purpose imputation from global positioning system data without using geographic information via relevant feature selection six groups: (1) activity time; (2) user characteristics; (3) predicted travel modes; (4) actual (5) estimated home location; and (6) location of the most frequently visited non-home place (MFVP). Two datasets were collected in 2019 TRavelVU, smartphone application. The first one (the Hanoi dataset) comprised 652 days’ worth 63...

This workshop discussed various aspect of the mathematical part survey methodology, as well archiving and confidentiality issues aimed at improving data quality its use through time.Participants identified ways to correct or minimize bias by dealing with incomplete sampling frames, using weighing imputing procedures.We methods archive share GPS-based preserve anonymity.Finally, we debated research needs on these topics for next following years.

Résumé L’amélioration des systèmes de transport dans les agglomérations (vitesse accrue et baisse coûts transport) a contribué à la diminution densité zones urbaines conduit un usage dominant voiture une très forte réduction l’usage marche du vélo, tandis que transports en commun sont restés globalement stable. L’usage est maintenant face aux autres modes y compris métropole parisienne. Cette domination plus l’opinion publique réclamer son le développement d’alternative usage. L’objectif ce...