Here are some common examples:
Common Prefixes:
* "US": This prefix is used for US Highways, which are federal highways that run across state lines.
* "I": This prefix is used for Interstate Highways, another federal highway system.
* "SR": This is a common prefix for State Routes in many states (e.g., SR 1, SR 101, etc.).
* "Route": Some states use "Route" as the prefix (e.g., Route 1, Route 10, etc.).
* "HWY": Some states use "HWY" as the prefix (e.g., HWY 1, HWY 10, etc.).
* "State": Some states use "State" as the prefix (e.g., State Route 1, State Highway 10, etc.).
Example State Prefixes:
* California: CA, SR
* Texas: TX, SH
* Florida: FL, SR
* New York: NY, NY Route
* Pennsylvania: PA, PA Route
To determine the specific prefixes used in a particular state, you can refer to the state's Department of Transportation (DOT) website or use online mapping services like Google Maps.