Assigning trips to the vehicles of a given fleet is known as the trip packing problem. Generally, each trip has a known duration and the working time of vehicles is limited and the fleet is composed of a limited number of non identical vehicles. This paper considers a special version of this problem we met in petrol products transportation. In this special version trip revenue depends on the ve...

With the emergence of location-based services, such as Foursquare and Gowalla, users are allowed to easily perform check-in actions anywhere and anytime. The locationbased check-in not only enables personal geospatial journeys but also serves as a kind of fine-grained source for trip planning. In this work, we aim to collectively compose traveling paths by leveraging the check-in data through m...

This paper addresses the importance of travel forecasting, the general direction of emerging forecasting methods, the importance of integrating land use and transportation forecasting, and this committee’s relationship to other committees at the Transportation Research Board (TRB). In particular, the movement from trip-based to activity-pattern or activity-scheduling methods of modeling is emph...

The failure of preparation for forecasting along with excessive focus on incumbent technology may lead to the failure in coping with in emerging technology, resulting in being late entrant in the market eventually. Thus, this paper suggests a framework for monitoring and forecasting technology substitution on the basis of patent information. It transformed survival analysis and estimated by uti...

This paper considers a generalized version of the trip packing problem that we encountered as a sub-problem of the petrol stations replenishment problem. In this version we have to assign a number of trips to a fleet composed of a limited number of non-identical tank-trucks. Each trip has a specific duration, working time of vehicles is limited and the net revenue of each trip depends on the tr...

This paper studies the impact of variable transmission delays on the Transmission Control Protocol (TCP). Sudden delay variations, which are not uncommon in mobile networks, may degrade the performance since they may cause spurious TCP timeouts. The most important parameter in this context is the TCP retransmission timer. In this paper, we analyze TCP’s round-trip time estimation for bulk data ...

The research field of transportation demand forecasting has started to focus on disaggregate travel behavior and micro-simulation models. To create data infrastructure, disaggregate trip surveys are conducted and large numbers of observations are collected. To efficiently exploit these surveys, the transfer of the individual trip data to a GIS must start with the development of a solid conceptu...

Shared-ride trip planning is one potential field of application within the research domain of geosensor-networks. Such a system is envisioned to provide people in need of transportation (clients) and transportation providers (hosts) with an ad-hoc, peer-to-peer communication, positioning, and planning infrastructure within an urban environment. By doing this, shared-ride trip planning can contr...

Over the last decade, a growing body of evidence has emerged to suggest a causal link between short-duration exposure to elevated levels of fine airborne particulate matter and adverse health consequences. It is believed much of this ‘peak’ exposure occurs in transport microenvironments both because of the higher levels of fine particulates associated with road traffic, primarily from diesel ex...