We present a prototype mobile phone application that implements a novel transportation mode detection algorithm. The application is designed to run in the background, and continuously collects data from built-in acceleration and network location sensors. The collected data is analysed automatically and partitioned into activity segments. A key finding of our work is that walking activity can be...

BACKGROUND Changes in urban mobility play a major role in transforming metropolitan areas into healthier places. This study quantified the impact of changes in travel mode shift and trip distance on active and non-active transportation of working age adult population of São Paulo. METHODS AND FINDINGS Through different scenarios, we estimated the daily time spent in transportation per inhabit...

One main group of a transportation network is a discrete hub covering problem that seeks to minimize the total transportation cost. This paper presents a multi-product and multi-mode hub covering model, in which the transportation time depends on travelling mode between each pair of hubs. Indeed, the nature of products is considered different and hub capacity constraint is also applied. Due to ...

Since railway transport possesses the advantage of high volume and low carbon emissions, diverting some freight from road to railway will help reduce the negative environmental impacts associated with transport. This paper develops a flow assignment model for quantitative analysis of diverting truck freight to railway. First, a general network which considers road transportation, railway transp...

This paper presents a system proposing a solution to the problem of Origin-Destination (OD) trip modelling for Multimodal Transportation Networks (MTN) using GIS tools. An efficient method for the handling of travel information within the MTN consists of dealing with an optimal multimodal routing of travellers from a point of origin to point of destination. Furthermore, the multimodal travellin...

Introduction During this century several transportation modes, including transit, personal automobiles, and airplanes, have competed for market share. Despite this competition, the personal vehicle has become the dominant form of mobility in many countries throughout Europe and North America. In turn, public transit has found it increasingly difficult to attract and retain passengers. This pape...

Maritime transportation is the most efficient and cost-effective mode of transport. With the appropriate use of advanced technology, the efficiency of the industry can be improved even further. Information systems for the maritime industry have been generally ignored by the IS community. Consequently, we introduce “Maritime Informatics” as a new stream to introduce IS scholars to the many resea...

In 2013, the United States used more than 25% of its energy supply for the purpose of moving people and goods from one place to another, i.e., in the transportation sector. 1 Even modest improvements that reduce transportation energy consumption can reduce energy imports and greenhouse gas emissions, two of ARPA-E’s primary goals. To date, technologies directed at transportation have focused pr...

Public urban mobility systems are composed by several transportation modes connected together. Most studies in urban mobility and planning often ignore the multi-layer nature of transportation systems considering only aggregated versions of this complex scenario. In this work we present a model for the representation of the transportation system of an entire city as a multiplex network. Using t...