Final answer:
A driver can perform a U-turn where it is not prohibited by signs, when it's safe, and in compliance with local laws. Certain areas such as intersections, spaces with dedicated U-turn lanes, and wide streets with medians often allow U-turns while highways, rail crossings, and business districts often prohibit them.
Step-by-step explanation:
A driver of a vehicle may perform a U-turn in locations that are not explicitly prohibited by signage, and where the maneuver can be done safely. The driver must ensure that the U-turn is legal in that area and that it is safe to execute without endangering themselves or other road users. It's important to note that state and local laws vary, so the legality of U-turns can differ depending on location.
For example, U-turns are commonly allowed:
- At intersections where there are no signs prohibiting a U-turn.
- When there is a dedicated lane for U-turns, sometimes indicated by road markings.
- On streets with a median, where breaks in the median are provided for turning vehicles.
However, U-turns are typically not allowed:
- On highways or expressways where high-speed traffic prohibits safe turning.
- At railway crossings or near the crest of a hill where visibility is limited.
- In business districts, especially where pedestrian traffic is heavy, unless signs permit them.
Before making a U-turn, the driver must always check for signs and signals, ensure they have a clear view of incoming traffic, and consider the speed and flow of surrounding vehicles.