Speed, Lane Use, Turns, and Parking
Key Takeaways
- California's Basic Speed Law means the posted limit is not always safe; traffic, weather, surface, visibility, pedestrians, and bicyclists can require a lower speed.
- Default California speeds include 65 mph on most highways, 55 mph on two-lane undivided highways and when towing, 25 mph in business or residential districts, and 15 mph at blind intersections and alleys.
- Use turn signals before turns and lane changes, check blind spots, and enter bike lanes only when legally allowed, such as within 200 feet of a right turn.
- Right turns on red require a complete stop, no posted ban, and yielding; left on red is limited to one-way street onto one-way street unless prohibited.
- Curb colors are testable: red no stopping, yellow loading, white passenger pickup/dropoff, green limited time, and blue disabled parking.
Speed, Lane Use, Turns, and Parking
California speed and lane questions are usually scenario questions. The posted number matters, but the first rule is the Basic Speed Law: you may never drive faster than is safe for current conditions. Rain, fog, rough pavement, congestion, pedestrians, bicyclists, road work, and limited visibility can all make the safe speed lower than the posted limit. When a question describes poor conditions, the correct answer almost always reduces speed even if the choice listing the posted number looks familiar.
Speed Defaults to Memorize
| Location or condition | Default California speed unless posted otherwise |
|---|---|
| Most California highways/freeways | 65 mph maximum |
| Two-lane undivided highway | 55 mph |
| Vehicle towing a trailer | 55 mph |
| Business or residential district | 25 mph |
| Near a school while children are outside or crossing | 25 mph (some school zones posted as low as 15 mph) |
| Blind intersection (view blocked, no stop signs) | 15 mph |
| Alley | 15 mph |
| Railroad crossing where you cannot see 400 ft both ways | 15 mph within 100 ft of the crossing, unless controlled by gates, signal, or flag person |
A blind intersection is one where you cannot see 100 feet in either direction during the last 100 feet before crossing. Memorize the trio of 65 / 55 / 25 / 15 numbers because the test rephrases them constantly. Also recall the Move Over law: slow down and, when possible, move over a lane for stopped emergency, tow, or Caltrans vehicles displaying flashing amber or emergency lights.
Lane Use and Bike Lanes
Use the right lane to enter or exit traffic and the left lane to pass or turn left where lanes are available. Before any lane change, signal, check your mirrors, and turn your head to check the blind spot — mirrors alone leave a blind zone. On a freeway, the DMV expects you to signal at least five seconds before changing lanes or exiting. If you are driving slower than normal traffic, keep right and do not block the normal flow.
Bike lanes are reserved for bicyclists. Under California Vehicle Code section 21209, a driver may enter one only for narrow reasons: to park where parking is allowed, to enter or leave the road at a driveway or intersection, or to prepare for a right turn within 200 feet of an intersection. Before entering a bike lane to turn right, check over your shoulder and merge behind any bicyclist rather than cutting across their path.
When passing a bicyclist, the Three Feet for Safety Act applies. Since AB 1909 took effect January 1, 2023, a driver must change into an adjacent lane to pass when one is available and it is safe. If a lane change is not possible, the driver must slow to a safe speed and leave at least three feet of clearance; if three feet is not available, you must wait until it is safe to pass.
Turns and Red-Light Caveats
For a right turn, move close to the right edge or enter the right-turn lane at its opening, signal about 100 feet before the turn, check for pedestrians, bicyclists, and motorcycles near the curb, then complete the turn into the right lane without swinging wide.
| Turn situation | California rule |
|---|---|
| Right on steady red | Allowed only after a complete stop, unless a No Turn on Red sign prohibits it, and only after yielding. |
| Right on red arrow | Not allowed; wait for the green. |
| Left on steady red | Allowed only from a one-way street onto another one-way street, unless a sign prohibits it. Yield to traffic and pedestrians with the green. |
| U-turn | Use the left-turn lane; never make one where posted No U-turn, at railroad crossings, on one-way streets, or where you cannot see 200 feet each way. |
| Center left-turn lane | Enter within 200 feet of the turn; use only for left turns or U-turns, not passing. |
Parking and Curb Colors
Colored curbs are quick-recall items the test reuses verbatim.
| Curb color | Meaning |
|---|---|
| Red | No stopping, standing, or parking (buses may stop at marked red bus zones) |
| Yellow | Load or unload passengers or freight; obey posted time limits |
| White | Stop only long enough to pick up or drop off passengers |
| Green | Park for a limited time shown by signs or curb markings |
| Blue | Disabled parking only, with a valid placard or plate |
For hill parking, always set the parking brake. Downhill (with or without a curb): turn wheels toward the curb. Uphill with a curb: turn wheels away from the curb so the tire rests against it. Uphill or downhill with no curb: turn wheels toward the road edge (to the right). The exam pattern is consistent — pick the wheel position that keeps the vehicle from rolling into traffic if the brakes fail.
You are on a residential street posted at 25 mph, but heavy rain is limiting visibility and pedestrians are near parked cars. Which answer best applies California's speed rule?
You want to turn right at the next intersection, and a bike lane runs beside your lane. What is the correct approach?
Which red-light turn is legal in California if there is no sign prohibiting it and you first stop and yield?
You park facing downhill on a street with a curb. Which way should your front wheels point?