911 should be able to stop a train
It was over 5 years ago that I blogged about a robot that would travel in front of a train to spot cars stuck on the tracks in time to stop.
I recently read a local story about an RV that was demolished while stuck on the tracks here. The couple had time to talk to 911, who told them to get out, and it's not clear from the story but it seems like a moderate amount of time may have passed (a couple of minutes) before their RV was smashed.
Here's what should happen, and perhaps it does happen in some places:
- The 911 service should receive GPS and cell tower location on the caller. The moment the caller indicates they are stuck on the tracks, the 911 operator should push a button which figures out which tracks it might be and which trains might be approaching that crossing.
- Ideally trains are reporting their location with GPS as some do, but schedules can be used, or all trains anywhere near the area can be alerted.
- Signal lights close to the crossing should immediately go red, and cell phones of operators on the relevant trains should be called, and the computer or 911 operator can indicate which crossing is blocked. If the engineer is approaching that crossing they can emergency brake.
This can be enhanced a few ways:
- Each crossing can have a big sign, "If stuck, get out of vehicle immediately, clear track (show direction) and call 911, and give this crossing number NNN." The crossing number would work even if GPS and cell towers don't locate the crossing.
- Alternately, there could be a 10 digit phone number, different for each crossing. There is, however, some risk of abuse and false reports. You don't want a war dialing telemarketer to stop trains. An operator may still need to confirm.
- As noted, the sign should try to tell people to clear to the area slightly "upstream" (ie. towards the oncoming train, but not on the tracks, obviously.) That's because when the train hits the car it throws it sideways and forward, never backwards along the path the train came from.
- If you don't see or hear a train, it makes slight sense to get out and call while walking so the call comes sooner. If you can see the train they can see you and it's probably too late anyway. But human safety is more important.
- The trains may have another way to reach the engineer, such as a private radio system, but just having a cell phone on each train (plus knowing trains staff personal cell phones and calling all of them) seems like a quick and easy solution. The cell in the train can have a very loud and flashing ringer, especially if it's an emergency call.
It takes a long time to stop a train, but I bet most vehicles that get stuck on the tracks are stuck minutes before the train comes.