How does the time of day affect accidents? Not surprisingly, accidents follow other traffic patterns. In the morning peak (6 – 9 AM) concentrations are farther out (as everyone is coming into the center of the city), whereas in the evening peak (4 – 9 PM) accidents are more centered near the CBD.
Try turning on layers (one for morning, one for evening) one at a time so you can see the difference.
The above graph shows the total accidents (N=1,900) by the time they were first reported. Two clear peaks are evident during peak commuting (and traffic) hours.
The following graph shows that on average more accidents occur on Fridays and Saturdays.
This map shows all six months (May 2015 to October 2015) of accidents in Nairobi County. The time-lapse shows accidents by day, with new accidents layering on older ones to finally create a map of all six months of accidents.
Nairobi Accident Map 