index S U V W T Y  164 Traffic signals................................. 36–37, 43–45 Traffic signs................................................ 29–36 Trains ......................................................... 96–98 railway signs ................................................. 36 Transmission automatic ............................................... 18–19 clutch pedal ................................................. 22 standard ................................................. 18–19 Trucks .................................... See  Large vehicles Turbulence............................................... 91, 124 Turn signals ........................ See  Communication Turning around................................................ 57 Vehicle impoundment................................... 156 Vision central and peripheral.................................. 60 glare and shadows ..................................... 119 low-visibility conditions...................... 118–119 seeing........................................................... 99 test ..................................................... 137–138 Weather conditions............................... 118–123 ice and snow ...................................... 121–123 rain ..................................................... 120–121 Tailgating.............................. See  Space margins Tests Class 5 road test ................................ 141–142 Class 7 road test ........................................ 139 knowledge test .......................................... 137 preparing for road tests ............................. 142 vision and medical ..................................... 138 Tires maintenance ................................................ 25 tire blowout................................................ 126 Traction...................................................... 69–70 Traffic circles ............................. See  Intersections Scanning.................................. See  Observations School buses ....................................... See  Buses School zones ............................................. 31, 84 Seatbelts ................................................... 11, 14 Seeing ................................................ See  Vision See-Think-Do ............................................ 59–79 Shoulder checks ....................... See  Observation Signalling............................................. 41, 77–78 Signals ..................................... See  Traffic signals Signs.......................................... See  Traffic signs Skids .............................................................. 117 Space margins........................................... 72–75 escape route ................................................ 74 following distance.................................. 72–74 gap ............................................................... 75 lane position ................................................ 74 space beside ................................................ 74 stopping distance .................................. 72–73 tailgating ................................................ 72, 74 Speed control............................................ 69–71 speed limits.................................................. 69 Standard transmission............................... 18–19 Steering..................................................... 71–72 Stopping................................... See  Intersections Stress ..................................... See also  Emotions Yielding ..................................................... 46–48 U-turns............................................................. 52