Raised line markers on the roadway and shoulder are used to define?
The surface of this type of vibrating coating line is distributed and scattered with raised bumps. Some bumps are coated with high-refractive-index glass beads. When a speeding vehicle runs over the raised road lines, it produces a strong warning vibration to remind the car driver of deviation from the lane. Perpendicular to driving directions, these marking lines are used for settled mainline toll plaza, ramp entrances, mountainous areas, continuous sharp turns, downhill sections and the end of the highway (intersection of highway exit and the plane of the common roadway), gates and entrances of enterprises, institutions, and school. In the same direction of traffic driving direction, they are mainly settled in the median strip, edge lines, and dangerous sections of the road.
Raised line markers on the roadway and shoulder are, parallel to drive directed are used to define?
median strip, edge lines, and dangerous sections of the road. deviation from the lane
Raised pavement marker
No context provided
Raised line markers on the roadway and shoulder are, perpendicular to drive directed are used to define?
settled mainline toll plaza, ramp entrances, mountainous areas, continuous sharp turns, downhill sections and the end of the highway, gates and entrances of enterprises, institutions, and school
Raised pavement marker
https://en.wikipedia.org/wiki/Raised%20pavement%20marker
A raised pavement marker is a safety device used on roads. 
Raised pavement marker
There are multiple uses for raised line markers as safety devices on roadways and shoulders. Many of the parallel markers are there to mark a median strip, edge lines, and dangerous sections of the road. Whereas markers that are perpendicular to the road are settled mainline toll plaza, ramp entrances, mountainous areas, continuous sharp turns, downhill sections and the end of the highway, gates and entrances of enterprises, institutions, and school markers. 