| Answer | Crossword Clue |
|---|---|
| SLEDGERS | Drivers of heavy winter vehicles. |
| AMISH | Drivers of some slow-moving vehicles |
| SEMIS | Vehicles for some truck drivers |
| GOKARTS | Vehicles that often have unlicensed drivers |
| autoguide | a system whereby information on traffic conditions is collected by roadside sensors and relayed to drivers via receivers in their vehicles |
| autoguides | AUTOGUIDE, a system whereby information on traffic conditions is collected by roadside sensors and relayed to drivers via receivers in their vehicles |
