How the Titanic sank: a chain of small decisions

Process map by Brian. 21 steps, 2 layers. Tags: history, disasters, titanic, engineering.

1. Titanic officers and crew: Leaves Southampton on her maiden voyage to New York
2. Radio room: Ice warnings arrive from other ships all day
3. Titanic officers and crew: Keep up high speed anyway to stay on schedule
4. Ice and the sea: Cold, calm night: no waves breaking at the base of the iceberg
5. Titanic officers and crew: Lookouts spot the iceberg too late with no binoculars
6. Titanic officers and crew: Turn hard, but the ship scrapes along the starboard side
7. Ice and the sea: Plates and rivets give way and water floods five compartments
8. Titanic officers and crew: Is the ship able to stay afloat with five compartments open?
9. Radio room: Sends distress calls and fires rockets
10. Nearby ships: Does a nearby ship answer in time?
11. Nearby ships: The closest ship had its radio off and does not respond
12. Passengers: Lifeboats for only about half of the people aboard are launched, many half empty
13. Titanic officers and crew: The ship breaks apart and sinks at 2:20 in the morning
14. Nearby ships: Carpathia picks up about 700 survivors
15. Titanic officers and crew: Inquiries lead to new rules: lifeboats for everyone, 24 hour radio watch and an ice patrol
16. Nearby ships: Carpathia races through the ice and arrives hours later
17. Titanic officers and crew: The design allowed for four, so this is the failure point

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