Do not know why u did not answer the last Q,
but it's OK, that is pretty small problem, no worry.
Already answered by above poster, skip same part of explanations.
2) and 3) are same コミュニティバス(community bus) of 成田市(Narita-shi, =Narita City)'s stops.https://www.city.narita.chiba.jp/kurashi/page105700.html
Jump to 豊住ルート(Toyosumi route) and open PDF files both.
2nd bus stop name is "長沼保育園(Naganuma-hoikuen, = Naganuma nursery",
3rd is "安西(Ansai, just it is a name of land, =address)".
(in Japan, written 安西 is called "Anzai" usual, it is small note, not so important)
"Chiba Kotsu bus" is just being commissioned for driving work fr Narita City,
so bus operator and management (as organization) is Narita City,
but drivers are belonging with Chiba Kotsu(one of public private bus company).
Many rural or small towns entrust community bus works to
local bus or taxi company cases a lot. (=outsourcing)
A image of Fukushima Kotsu bus is no related, mentioned already,
using a large type bus, it means for long distance, so it looks ExpWay bus
connecting btw Fukushima pref and Narita Airport, or a charter bus.
In 2012(street view camera car passed and recorded) was no convenience
ExpWay(toll road) located in northern side against R408(national road).
Back to 1), again.
Already you may noticed this has different 3 route fr JR Toke stn.
Can you opened all timetables fr my last post url link of "Navitime"?
that page is only about Expway buses fr/to NRT and local bus around NRT. http://www.chibakotsu.co.jp/en/
Also Japanese pages have no info about community bus of Narita City.
Also "Navitime" doesn't cover this community bus.
BTW, you haven't or cannot get IDP for car rent?https://en.wikipedia.org/wiki/International_Driving_Permit