Sorry that has happened. DD was thankfully assigned AM kindergarten (at our school children attending day care usually are) and attended a center-based day care. The day care picked children up in a van or short bus. We only had to transport her in the morning, which was our choice.
DD never rode the bus in elementary school and I'm glad she didn't for many reasons. She will be riding the bus this year as she starts middle school. After speaking with someone in transportation, I'm glad that I made the decision for her not to ride the bus when she was in younger. When I spoke with the department in July, I was told that they did not know what the bus routes would be yet (to check the web site in August; checked today, which is 2 weeks before school starts and still nothing is posted), they won't know who the bus drivers are until about 2 weeks before school starts, and that the bus drivers will not have information about which students on their busses have LTFA or asthma until 2 weeks into the school year. I was told the school nurse at the child's school will print out a list and provide it to the bus driver. It was suggested to me that I go to the bus stop on the first day of school and introduce myself and DD to the bus driver; that is so not cool for a 6th grader and I'm sure will open her up to some teasing. I was also told that while there is a no food policy on the bus and they do their best to enforce it, they cannot guarantee that there will be no food on the bus. I'm glad that I didn't put DD into those conditions when she was younger. She's always been good about speaking up about her allergies even when she was young but she's certainly more capable now at 11.
Good luck with your school year. I know it's stressful and not an ideal situation, but it will go by quickly.