Civic · 6 pages · 12 min
How response time is a geography
Response time is mostly travel over a real road network from a station to a call.
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From the opening
Response time is the interval from when a call is ready to be sent until a unit arrives, and most of that interval is travel. Travel is a geographic fact: distance along the roads that exist, at the speeds those roads allow, from where the unit actually starts. The opening covers travel follows the real road network, busy units force a longer start, and congestion changes the same map.
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Inside
- Travel follows the real road network
- Busy units force a longer start
- Congestion changes the same map
- A citywide average hides edges
- Where the idea stops applying
- A distinction worth keeping
Sources
- Fire station coverage area
- Emergency travel time