Drawing
Add a point (smooth curve)click
Finish the roaddouble-click / Enter
Join an existing road & finishclick on it
Freehand roaddrag
Remove last point / cancelBackspace / Esc
Straight line at 15° stepshold Shift
Undo last roadZ
View
Panright-drag / Space+drag / minimap
Zoommouse wheel
Simulation
PauseP
Slower / faster[ ]
Tools
Build (road · bridge · tunnel) · EraseR B T E
Edit a road: lanes, turn arrows, typeN
Paint a road type over many roads (drag)U
RoundaboutO
Traffic control (signals, signs, limits)C
Quick: signal · stop · yieldL S Y
Quick: speed limitV
Look around / select a vehicleQ
Traffic flow viewF
Good to know
Water gets a bridge, mountains a tunnel (automatic)
Bridge weight and tunnel height limits block big vehicles
Lights/signs: click an intersection or the road leading into it
Connect the lettered gates to earn money
Sirens: other cars pull over; police run one-lane traffic around accidents