A roadway barrier includes: (i) a longitudinally corrugated rail defining a longitudinal trough between longitudinal ridges, which rail in the region of the trough, defines an aperture: (ii) a reflector comprising: (a) a substantially V-shaped panel with a reflective surface, the panel defining a spine and a pair of arms that diverge from the spine, and the panel arms being resiliently movable between a neutral condition and a splayed condition; (b) a shaft extending from the spine of the panel, between the panel arms, wherein each panel arm is substantially planar and tapers in height from the spine towards its free end; and (c) a connector for securing to the reflector shaft. The reflector is located within the trough defined by the rail, with the reflector shaft extending through the aperture defined by the rail and secured in place by the connector, which connector induces tension within the reflector shaft, with the panel arms bearing against the rail, in the region of the trough, and maintaining the panel arms in the splayed condition.