interstate standardization rules
11Semi-trailer truck — A semi trailer truck, also known as tractor trailer or (in the United Kingdom and Ireland) articulated lorry, is an articulated truck or lorry consisting of a towing engine ( tractor in the United States, prime mover in Australia, and truck in… …
12Russia — /rush euh/, n. 1. Also called Russian Empire. Russian, Rossiya. a former empire in E Europe and N and W Asia: overthrown by the Russian Revolution 1917. Cap.: St. Petersburg (1703 1917). 2. See Union of Soviet Socialist Republics. 3. See Russian… …
13architecture — /ahr ki tek cheuhr/, n. 1. the profession of designing buildings, open areas, communities, and other artificial constructions and environments, usually with some regard to aesthetic effect. Architecture often includes design or selection of… …
14Commodity market — Financial markets Public market Exchange Securities Bond market Fixed income Corporate bond Government bond Municipal bond …
15North American railroad signals — Main article: North American railway signaling Baltimore and Ohio Railroad Color Position Light bracket masts at Magnolia, West Virginia North American railroad signals generally fall into the category of multi headed electrically lit units… …
16Conrail — Consolidated Rail Corporation (Conrail) Conrail system map with trackage rights in red. Reporting mark CR …
17Rail transportation in the United States — Rail transport Operations Track Maintenance High speed Gauge Stations …
18Traffic sign — Most countries post signage, known as traffic signs or road signs, at the side of roads to impart information to road users. Since language differences can create barriers to understanding, international signs using symbols in place of words have …
19Technological and industrial history of the United States — The technological and industrial history of the United States describes the United States emergence as one of the largest nations in the world as well as the most technologically powerful nation in the world. The availability of land and labor,… …
20Video Relay Service — A Video Relay Service (VRS) is a telecommunication service that allows deaf, hard of hearing and speech impaired individuals to communicate over the phone with hearing people in real time, using a sign language interpreter. In America, the… …
