Can a bus turn around in a coldasack?

Depends on how big your sack is. Also, if it's cold I recommend wearing warmer underwear.

A serious answer:Do you mean Cul-de-sac? (A dead end street, from the French, Sack bottom)

Bus drivers hate dead end roads of this type or any other.

Things to consider:

• Buses come in many sizes
• Dead end turn around (Coldesack) also are built in many sizes
• It only takes one parked car to make it so the bus has to back out
• The ratio of fatal pedestrian accident with buses while backing is incredibly high when taking into consideration the very limited amount of time spent in reverse.
• 85% of Bus drivers who loose there job due to minor traffic accidents loose their job in reverse

A smart bus driver doesn't go into a dead end and neither does a smart bus company.