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Road Rules Foundation
Road Signs & Markings
Speed & Stopping Distances
Load Safety
Adverse Conditions
The Anatomy of a Road
Before positioning makes sense, you need the vocabulary. A road is made up of distinct parts, and the difference matters because each carries different rules:
- The road — everything together: carriageway, lane(s), and shoulder combined.
- The carriageway — the full paved or formed width used by vehicles, both directions combined.
- The lane — the specific strip you're actually driving in. A lane can be marked (separated by painted lines — the norm in towns and on highways) or unmarked: if there's enough width for a vehicle to pass, it still counts as a lane, which is the everyday reality on rural roads with no painted markings at all.
- The shoulder — the area outside the carriageway itself: a safety zone meant for pedestrians, cyclists, and slow-moving traffic — not an extra driving lane.
Good to know
Current context — matatu shoulder use: on busy urban roads it's common for matatus to use the shoulder as an informal "extra lane," especially when traffic backs up. A vehicle on the shoulder is expected to give way to vehicles on the actual carriageway — but don't take the habit as legal cover. The shoulder is not a driving lane under the law, and treating it as one is exactly the habit that causes side-swipe collisions when a "shoulder lane" abruptly narrows or disappears.
Key takeaways
- Road = carriageway + lane(s) + shoulder; a lane counts as a lane if a vehicle fits, marked or not
- The shoulder is a safety zone for pedestrians, cyclists and slow traffic — never an extra driving lane, whatever the matatu ahead is doing
Quick check
What's the difference between the road and the carriageway?