Search results
Results from the WOW.Com Content Network
Hours of service. The hours of service limit the driving hours of truck drivers and bus drivers. Hours of service ( HOS) regulations are issued by the Federal Motor Carrier Safety Administration (FMCSA) and govern the working hours of anyone operating a commercial motor vehicle (CMV) in the United States.
Why the hours of service are important: a graph outlining the relationship between number of hours driven and the percent of crashes related to driver fatigue. Source: Federal Motor Carrier Safety Administration. Fatigue is a major safety concern in many fields, but especially in transportation, because fatigue can result in disastrous ...
English: Graph outlining the relationship between number of hours driving and incidents of crashes involving truck drivers in the United States. All hours over 12 are combined, due to the low number of sample data.
Level of service (transportation) Level of service (LOS) is a qualitative measure used to relate the quality of motor vehicle traffic service. LOS is used to analyze roadways and intersections by categorizing traffic flow and assigning quality levels of traffic based on performance measure like vehicle speed, density, congestion, etc.
Terce (third hour, 9 a.m.) Sext (sixth hour, noon) Nones (ninth hour, 3 p.m.) Vespers (sunset, approximately 6 p.m.) Compline (end of the day before retiring, approximately 7 p.m.) Church bells are tolled at the fixed times of these canonical hours in some Christian traditions as a call to prayer.
High availability ( HA) is a characteristic of a system that aims to ensure an agreed level of operational performance, usually uptime, for a higher than normal period. Modernization has resulted in an increased reliance on these systems. For example, hospitals and data centers require high availability of their systems to perform routine daily ...
Daytime. Daytime as observed on Earth is the period of the day during which a given location experiences natural illumination from direct sunlight. Daytime occurs when the Sun appears above the local horizon, that is, anywhere on the globe's hemisphere facing the Sun. In direct sunlight the movement of the sun can be recorded and observed using ...
Mean time between failures ( MTBF) is the predicted elapsed time between inherent failures of a mechanical or electronic system during normal system operation. MTBF can be calculated as the arithmetic mean (average) time between failures of a system. The term is used for repairable systems while mean time to failure ( MTTF) denotes the expected ...