This paper presents the conception, design, implementation and testing of innovative software architectures and software development processes for rapid prototyping of automated transit buses. Our work is motivated by demonstrations of automated transit bus technology in the context of Bus Rapid Transit (BRT) systems. Mission handling and safety issues are handled via a three-layer hierarchical...

Workloads for high-performance streaming databases often contain many writes of small data blocks (for example, of metadata) followed by large subrange queries. Most of today’s file systems and databases either cannot provide adequate performance for the write phase, the read phase, or both. The supercomputing technologies group at MIT CSAIL has been investigating cache-aware and cache-obliviou...

Changes in travel modes used by people, particularly reduction of the private car use, is an important determinant of effectiveness of transportation plans. Because of dependencies between the choices of residential location and travel mode, integrated modeling of these choices has been proposed by some researchers. In this paper, an agent-based microsimulation model has been developed to evalu...

OBJECTIVE A driving simulator was used to compare the effectiveness of increasing intensity (looming) auditory warning signals with other types of auditory warnings. BACKGROUND Auditory warnings have been shown to speed driver reaction time in rear-end collision situations; however, it is not clear which type of signal is the most effective. Although verbal and symbolic (e.g., a car horn) war...

BACKGROUND AND PURPOSE To evaluate the oncological outcome of a three-implant high dose rate (HDR) brachytherapy (BRT) protocol as monotherapy for clinically localised prostate cancer. MATERIAL AND METHODS Between February 2008 and December 2012, 450 consecutive patients with clinically localised prostate cancer were treated with HDR monotherapy. The cohort comprised of 198 low-, 135 intermed...