We explain a newly found vulnerability that allows circumvention of commonly used delay-based geolocation techniques that use ping or traceroute to sample delays. Attacks may leverage the echo request/reply type of the ICMP protocol. ICMP’s echo request/reply protocol does not specify a mechanism to measure the delays between network nodes. Consequently, different implementations exist on diffe...

This article uses a trip attribute approach to examine the relative passenger attractiveness of Bus Rapid Transit (BRT) systems compared to other transit modes. It examines how passengers value trip attributes for on-street bus, BRT, and light rail and heavy rail systems in passenger behavior research. Empirical data is presented which suggests that passengers value trip attributes for BRT and ...

Increasing mobility in cities by controlling overcrowding by Nikolaos Geroliminis Doctor of Philosophy in Engineering-Civil and Environmental Engineering University of California, Berkeley Professor Carlos F. Daganzo, Chair Various theories have been proposed to describe vehicular traffic movement in cities on an aggregate level. They fall short to create a macroscopic model with variable input...