Zagreb is very close to Slovenian border, but it would take you about 2 hours by bus or train from Ljubljana, the capital of Slovenia to Zagreb.
Approx. 12.518 km.
8318 miles
How far a bus can go on one tank of gas varies. It depends on the make and model of the bus, what fuel it uses, and how well it has been maintained.
vibration
Far enough back that the bus driver can see you in their mirrors. If you can't "see" them, they can't "see" you.
30 feet
yes' I can stop bus on the highway nearly 100 m.
No it is in Slovenia.
About 10 miles
A really short time
20 feet
The bus number varies depending on each route. The far, can be found on the bus's website.