We investigate the problem of creating simplified representations of polygonal paths. Specifically, we look at a path simplification problem in which line segments of a simplification are required to conform with a restricted set of directions C. An algorithm is given to compute such simplified paths in O(|C|n) time, where n is the number of vertices in the original path. This result is extende...

Upon exiting buildings, theatres, and stadiums, which house a great number of people, egress points can act as bottlenecks, resulting in crowded exits decreased flows. Most studies investigating flow have been conducted either narrow bottlenecks (doors) or funnel shape with the latter placed middle walkway. This study investigates, for first time, crowd through funnel-shaped corner walkway make...

It is our pleasure to introduce this issue from Public Transport with a selected set of the papers that were presented at the 12th Conference of Advanced Systems for Public Transport (CASPT12) held by the Department of Transport Engineering and Logistics of the Pontificia Universidad Católica de Chile and its Bus Rapid Transit Centre of Excellence in Santiago, Chile on July 23–27 2012. CASPT ha...

Ethernet has evolved from a local area to a wide area network technology. When it is used in a service provider environment, it has more complex requirements, which demand a set of management techniques for the Ethernet layer. Ethernet OAM comprises a set of management techniques for Carrier (or Metropolitan) Ethernet networks. Carrier Ethernet devices often have IP connectivity for management ...

We consider the problem of searching for a mobile intruder in a circular corridor by three mobile searchers, who hold one flashlight, a variation of the 1-searcher problem in a circular corridor. A circular corridor is a polygon with one polygonal hole such that its outer and inner boundaries are mutually weakly visible. The 1-searcher has a flashlight and can see only along the ray of the flas...

Towards EÆ ient Pa ket Swit hing Metro WDM Networks Martin Maier, Martin Reisslein, and Adam Wolisz Abstra t| In this paper, we brie y overview the urrent state{of{the{art of opti al WDM networking. We thereby point out that the ubiquitous SONET/SDH{WDM metro rings are likely to be ome a serious bottlene k between high{speed lo al area networks/broadband a ess te hnologies and WDM ba kbone netw...

The corridor illusion was assessed in four baboons (Papio papio) by way of judgmental task implying a comparison between the size of two figures presented on various backgrounds. Findings demonstrate that the baboons are sensitive to the corridor illusion.