1800 laid off?! How many do they have employed? Holy cow. No wonder it's a waste.
Edit: Just saw on Wikipedia... 4,000 employed. What the heck? 15 per station, per day... even if you take out ancillary staff, that's still like 10 per station per day, and that's being generous on the ancillary side.
They've got a total of 130 apparatus when counting only the engines, trucks, Haz-Mat and Rescue units alone, and that's not counting command staff and various day work positions such as instructors, fire prevention, PR, logistics, etc. etc. Assuming four on each rig, that's 520/day x 4 shifts, or around 2080 to staff the rigs. There are 50 ambulances and 27 medic units, for 154 personnel, so that's 616 right there, plus another 70 for pad. Many of the larger FD's have one or two pad personnel per station to detail out for vacation/sick relief, training, etc. With 92 stations, that's another 150-200 people. There's airport units, squads, and other units I'm not familiar with, so that's more people yet again.
If you laid off every ambulance position, and also cut each engine company by one, that's "only" 656 positions. What happens during a proposed Reduction in Force is that then dept will first look to eliminate positions due to attrition, or move office personnel back to the field. That will save more than a few jobs. Also, with a dept that has a headcount of 3851, you're probably losing 100/yr in retirement, probably more. If you lay off a bunch of FF's, you'll have to recruit more in the next year or two, and every year thereafter. In my dept, it costs at least 50k/FF to recruit, test, and train in the academy. Medics are closer to 100k each. This fact makes it less beneficial to lay off so many. They might lose a couple of hundred if the fire apparatus destaffing goes through. If they go from four shifts to three, then you're looking at a much higher number.