Some are for students with disabilities and others are centered on the arts - one is even specifically focused on hip-hop.
The statement on behalf of the bus companies said they will likely be in this same position next month.
The Emergency Alert System will be activated from fixed buttons and wireless lanyards within a school, and initiate a 911 response in under 10 seconds.
As for what is driving the increased homelessness among schoolchildren, advocates say it's the lack of affordable housing and families fleeing domestic violence.
The 37-year-old worked as a first-grade teacher in Queens and Manhattan.