U.S. route marker sign

Practice question

1. 

   What kind of route does this sign mark?

   • A An Interstate highway
   • B A state highway
   • C A county road
   • D A U.S. highway
   Show answer

   D. A U.S. highway

   U.S. route signs show black numbers on a white shield set on a black square. Each numbered system has its own shape so you can tell routes apart. U.S. routes rank after Interstates and before state routes.

   Source: MUTCD 11th ed., page 258