Case study of an FPGA implementation of a 3D graphics processor. Practical design issues dealing with a PCI-bus based reconfigurable FPGA prototyping board are discussed. PCI drivers and bandwidth issues are discussed. An analog VGA video output is presented as a solution to some of the bandwith issues.

Motivated by anecdotal evidence, we hypothesize that an egocentric approach is more appropriate and relevant to providing fuel efficiency feedback than a systemic approach. In this paper we describe a proposed study to test this hypothesis, and present the design of a fuel efficiency feedback system for public transit bus drivers.

PROBLEM Various indicators of health have been shown to be associated with traffic crash involvement. As general health is also related to absence from work, the latter variable may be more strongly related to crashes, especially for professional drivers. METHOD Bus driver absence from work was analyzed in association with their crash records. Two British samples and one Swedish sample were u...

San Francisco bus drivers have an increased prevalence of hypertension. This study examined relationships between blood lead concentration and blood pressure in 342 drivers. The analysis reported in this study was limited to subjects not on treatment for hypertension (n = 288). Systolic and diastolic pressures varied from 102 to 173 mm Hg and from 61 to 105 mm Hg, respectively. The blood lead c...

We introduce the subject of bus and train driver scheduling, and outline some early attempts at solutions based on heuristics, explaining their limitations. We then examine one successful blend of heuristics and integer linear programming leading to the TRACS II system which is in regular use in a wide range of transport organisations. Again we discuss the limitations of this system. In order t...

Male and female urban bus drivers were studied at work during everyday bus driving in urban traffic (work condition) and watching educational programs (comparison condition). The results showed that (a) both sexes had significantly higher adrenaline, noradrenaline, and cortisol excretion levels during work than during the comparison session; (b) during work and inactivity, there were no signifi...

The primary challenge for an urban bus system is to maintain constant headways between successive buses. Most bus systems try to achieve this by adherence to a schedule; but this is undermined by the tendency of headways to collapse, so that buses travel in bunches. To counter this, we propose a new method of coördinating buses. Our method abandons the idea of a schedule and even any a priori t...

BACKGROUND Traffic related injuries are leading contributors to burden of disease worldwide. In developing countries a high proportion of them can be attributed to public transportation vehicles. Several mental disorders including alcohol and drug abuse, psychotic disorders, mental stress, productivity pressure, and low monetary income were found predictors of high rates of traffic related inju...

Research over the last 50 years has repeatedly documented that bus drivers are exposed to several physical and psychological risk factors, which are associated with health problems in the form of heart, musculo-skeletal and stomach disease, and increased coronary mortality. So why has there been little action to improve the situation when it is so obviously indicated by such assessments? This a...