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2. Braking distance - Wikipedia

   en.wikipedia.org/wiki/Braking_distance

   Braking distance is the distance a vehicle travels from when its brakes are applied to when it stops. Learn how to calculate it, how it depends on speed, friction and reaction time, and how it differs from stopping sight distance.

3. Two-second rule - Wikipedia

   en.wikipedia.org/wiki/Two-second_rule

   The two-second rule is a rule of thumb for defensive drivers to maintain a safe trailing distance at any speed. It is not a guide to safe stopping distance, but a safety buffer to allow time to respond. Learn how to apply the rule and when to use a three-second rule instead.

4. Left- and right-hand traffic - Wikipedia

   en.wikipedia.org/wiki/Left-_and_right-hand_traffic

   Learn about the history and current status of left-hand traffic (LHT) and right-hand traffic (RHT) in different countries and regions. Find out how LHT and RHT affect driving, roundabouts, and other aspects of traffic flow.

5. Great-circle distance - Wikipedia

   en.wikipedia.org/wiki/Great-circle_distance

   The haversine formula is a computational formula for calculating the great-circle distance between two points on a sphere, using the chord length relation. It is numerically better-conditioned for small distances than the spherical law of cosines formula, but less accurate for antipodal points.

6. Geographical distance - Wikipedia

   en.wikipedia.org/wiki/Geographical_distance

   Learn how to calculate the distance between two points on the Earth's surface using different approximations and formulae. Compare flat, spherical and ellipsoidal models and their errors and limitations.

7. Stopping sight distance - Wikipedia

   en.wikipedia.org/wiki/Stopping_sight_distance

   Learn how stopping sight distance is calculated and used in road design to ensure safe stopping conditions for vehicles and pedestrians. Find formulas, examples, and references for different types of sight distance and braking distance.