Traditional solutions to shortest path problems on time-varying transportation networks only use traffic information at definite moment so as to ignore the fact that the travel time through a link is dependent on the time to enter it. In this paper, the travel speed instead of the travel time on each link of road networks was modelled as a time-interval dependent variable, and a FIFOsatisfied c...

1.1 Motivation Much research is currently being undertaken in transportation to create more realistic models of transportation networks that account for the spatial heterogeneity in those transportation networks (Mark and Sadek, 2004), and also the different modes of transport that may be used. Simply assuming that users will travel at the maximum speed limit for a particular class of road fail...

For details… For details… o de s… o de s… Miyagawa, M.: Optimal hierarchical system of a Miyagawa, M.: Optimal hierarchical system of a y g , p y grid road network, Major arterial Major arterial Proportions differ considerably among wards Proportions differ considerably among wards Hierarchical system of road networks Hierarchical system of road networks e c c sys e o o d e wo s e c c sys e o o...

We examined 18- and 24-month-old infants' sensitivity to the functional relationships between time, speed, and distance. The task included a train moving first visibly and then into a tunnel. The movement of the train was always accompanied by a train-characteristic sound signalling the travel duration. After the train concluded its travel, infants were requested to search for it in two possibl...

This paper instantly infers the gas consumption and pollution emission of vehicles traveling on a city’s road network in a current time slot, using GPS trajectories from a sample of vehicles (e.g., taxicabs). The knowledge can be used to suggest cost-efficient driving routes as well as identifying road segments where gas has been wasted significantly. The instant estimation of the emissions fro...

Travel times in urban road networks are highly stochastic. However, most existing travel time estimation methods only estimate the mean travel times, while ignoring travel time variances. To this end, this paper proposes a robust travel time distribution estimation method to estimate both the mean and variance of travel times by using emerging low-frequency floating car data. Different from the...

The essence of this theory is that photons are small particles of ponderable mass that travel in set helical trajectories. For any photon, the diameter of its helix may be calculated by dividing its wavelength by p (d = l/p). Further, a photon travels at a speed that is the square root of two times the speed of its helical wave, Ö2 ́ c. __________________________________________________________...