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Speed & Stopping Distances · Topic 3 of 6 · ~1 min read
Kenya's Speed Limits and Why Each Exists
In this lesson you'll learn
- The two dimensions of Kenya's speed framework — vehicle class and road environment — and how to read them together
- What each limit converts to in stopping-distance terms, using Lesson 4.2's table
- The pedestrian-survival logic behind 30 km/h zones — the most important single number in this lesson
- Why lorries and trailers carry lower limits than cars on the same road
- How to answer the perennial "but the road was empty" argument — with physics rather than morality
- 1. Two Dimensions, One Binding AnswerRead Kenya's two speed-limit dimensions — vehicle class and road environment — together, and state why heavy-vehicle ceilings are lower.
- 2. Each Limit, Translated Into MetresConvert each speed limit into its stopping distance, and explain why each tier sits where it does.
- 3. The 30 km/h Zone: A Survival ThresholdExplain the 30 km/h zone using the pedestrian survival curve and the two-stage stopping model together.
- 4. Two Objections, AnsweredAnswer the "driving too slowly" and "but the road was empty" objections using the two-stage model and the visible/invisible hazard distinction.