Master the Delaware Rules of the Road 2025 – All-in-One Practice Test Guide for Success!

A double solid yellow line indicates a clear restriction on passing. This marking is specifically used to communicate that vehicles are not allowed to cross these lines to pass other vehicles in either direction. This ensures safety on the roads, particularly in areas where visibility is limited or where it may be dangerous to overtake other vehicles.

The other options reflect scenarios that are not applicable to a double solid yellow line. For instance, a single solid yellow line typically indicates that passing is not permitted, while a dashed yellow line could allow for passing under certain conditions. A center lane for turning often is marked differently, such as with a broken yellow line, and an advisory speed limit would use a different signage format. Thus, the understanding of double solid yellow lines as a no-passing zone is essential for maintaining safety and order on the road.