Recently National Public Radio has run a series entitled “On the Road to Safety,” exploring various aspects of traffic safety.
The interdisciplinary number for traffic safety is 363.125 Highway and urban vehicular transportation, a number that has 363.1 Public safety programs and 363.12 Transportation hazards in its upward hierarchy. The number 363.125 has unsubdivided Relative Index entries “Road safety” and “Traffic safety,” among others. An example of a work classed in 363.125 is the World Health Organization’s Global Status Report on Road Safety (WorldCat record for summary here, full report available here).
Works on safety engineering of roads are classed in appropriate subdivisions of 625.7 Roads, which has the Relative Index entry “Roads—engineering,” among others. For example, works on protective roadside barriers are classed in 625.795 Protective roadside barriers. An example of a work classed in 625.795 is Guardrail and Median Barrier Crashworthiness. (The entry 625.795 has the note “Including dividers, fences.”)
The Relative Index entry “Safety engineering” leads to 620.86 Safety engineering. The entry 620.86 has the note “For safety engineering of a specific technology, see the technology, plus notation T1—0289 from Table 1, e.g., safety in machine engineering 621.80289.” The standard subdivision T1—0289 Safety measures is not added for topics in including notes, because those topics do not approximate the whole of a number; nor is T1—0289 added where redundant, as when the caption specifies safety.
Works on safety engineering of motor land vehicles are classed in appropriate subdivisions of 629.2 Motor land vehicles, cycles. For example, engineering works on safety design of motor land vehicles are classed in 629.231 Analysis and design (the entry has the note “Including . . . safety design” and the Relative Index entry “Safety engineering—automotive—design”). An example of a work classed in 629.231 is Design for Safety & Quality: Lessons Learned from the Analysis of Crashed Daimler-Benz/Mercedes Automobiles: An Interview with Miklos F. Ranky. (The entry 629.22 Types of vehicles has the class-elsewhere note “Class design, materials, construction of a specific type of vehicle in 629.23.”) Engineering works on safety accessories in motor land vehicles are classed in 629.276 Safety accessories (the entry has the note “Including air bags, bumpers, mirrors, seat belts, windshield wipers and washers”). An example of a work classed in 629.276 is Air Bags and Occupant Restraints. The number 629.276 has the Relative Index entry “Air bags—automobile,” among others. The Library of Congress subject heading “Automobiles—Occupant restraint systems” has been editorially mapped to 629.276 (in WebDewey).
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