You are on a merge ramp approaching a highway. A yield sign is posted at the end of the ramp. Highway traffic is heavy and closely spaced. What should you do?

Heavy traffic with no gap means 'necessary to stop.' Wait at the end of the ramp until an adequate gap opens, then accelerate and merge smoothly. Rushing into traffic that has the right of way is a top cause of high-speed collisions on Ontario freeways.