Question: Raised line markers on the roadway and shoulder are used to define?
Answer: for increased visibility
Disambiguated annotations:
qaPairs: question: Raised line markers on the roadway and shoulder are, parallel to drive directed are used to define?
answer: median strip, edge lines, and dangerous sections of the road.
deviation from the lane
question: Raised line markers on the roadway and shoulder are, perpendicular to drive directed are used to define?
answer: 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