American Road & Transportation Builders Association (ARTBA) U.S. advocacy and trade association representing the transportation construction industry.
| Federal Highway Administration (FHWA) U.S. Department of Transportation division supporting highway design, construction, and research.
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Highways Maintenance Information Site Highways maintenance guide, technical information, and pictures related to highway maintenance and road construction.
| Road Engineering Association of Asia & Australasia (REAAA) Regional body promoting road engineering education, construction, and maintenance.
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