Motivated by a real application, we consider the following aircraft scheduling problem. At any time, the aircraft are at diierent locations or are serving a customer and new customer requests arrive, each consisting of a departure location, departure time and destination. Additionally, if a customer request consists of more than one trip, there may be an exclusive use of the aircraft between th...

The raison d’etre for the air transportation system is the movement of passengers and cargo. Consumer information for airline passengers and regulatory consumer protection of airline services provide measures of performance using the percentage of on-time flights, and the percentage of cancelled flights. Researchers have shown that these “flight-based” metrics are a poor proxy for measuring the...

The work presented in this paper aims to model and solve multi-criteria international itinerary planning problems The emerging itinerary planning problems are defined on a multimodal time-dependent transportation network that consists of hierarchically interconnected international, interurban and urban transportation networks. The itinerary planning problems under study fall into two major cate...

OBJECTIVE To spread knowledge and instigate the health professional to give advice on childcare during travels and on child transport safety. SOURCES OF DATA Literature review through the LILACS and MEDLINE(®) databases, using the terms: travel, safety, protective equipment, child, preventive medicine, retrieving articles published in the last 21 years. SUMMARY OF THE FINDINGS The authors a...

Searching for optimal ways in a network is an important task in multiple application areas such as social networks, co-citation graphs or road networks. In the majority of applications, each edge in a network is associated with a certain cost and an optimal way minimizes the cost while fulfilling a certain property, e.g connecting a start and a destination node. In this paper, we want to extend...

2 ABSTRACT The quantification of the freight movements occurring in each traffic zone, and then of the Origin-Destination trip tables due to the delivery of goods in the urban environment, is essential for evaluating the effects of any city logistic policy in terms of vehicle congestion and polluting emissions, based on the assignment of demand flows to the road network. To this end in the pres...

When mobiTopp was initially designed, more than 10 years ago, it has been the first travel demand simulation model intended for an analysis period of one week. However, the first version supported only an analysis period of one day. This paper describes the lessons learned while extending the simulation period from one day to one week. One important issue is ensuring realistic start times of ac...

Transit agencies have never had an accurate indicator of the extent of their service area based on riders’ door-to-door travel time. This is an important gap in knowledge, because travel time is one of the most important factors determining whether or not people will use public transit. This paper presents a powerful new travel timebased method to visualize and analyze transit service coverage—...

This paper introduces a multi-period, two-dimensional vehicle loading and dispatching problem, called Two-Dimensional Vehicle Loading Dispatching Problem with Incompatibility Constraints (VLDP). The problem concerns preparing single-origin single-destination transportation plan of required orders to vehicles at the origin deliver destination within their due dates. decision maker uses own fleet...