safety island, safety isle, safety zone, traffic island

subgrade, culvert, roadway, subbase, trestle bridge, viaduct, streambed, pilings, retaining wall, truss bridge, revetment, riprap, overpass, gravel, snowshed, caliche, millrace, trestles, bailey bridge, abutments, berm, macadam, bridge, falsework, sluiceway, trackage, piers, creek, asphalt, caissons, trench, repaving, pavement, blacktop, crossties, embankments, headrace, parkway, waterlines, throughway, riverbed, swale, tarmacadam, bulkhead, bayonne bridge, gulch, ruts, creek bed, crossbeams, railroad, drainage, underpass, seawall, footings, overcrossing, levee, bridgework, bascule bridge, subfloor, boulders, frost heave, understructure, flume, bottomland, walkway, diking, drainage ditch, girders, marl, silt, reservior, posthole, cartway, causeway, roadwork, cofferdam, oxbow, spalling, muskeg, chuckholes, brickwork, sediment, coulee, hardpan, sinkhole, grouting, spillway, trusses, centerlines, pavers, guideway, laths, kerbing, trackway, rockslide, overpasses, earthwork, landslip, tunnels, guardrail, metalling, timbers, roadways, sidewalk, paving, road, turnpike, flooring, embankment, roads, runway, sidewalks, driveway, pavements, shingle, track, bed, footpath, supersaturated, compact, coulomb, decalcified, decorticated, denuded, gluey, glutinous, grout, implant, layered, liquefied, nonhomogeneous, placebo, saline, sample, scantiest, situ

line, railway line, rail line

road, route

bed