Stop new Tourists from attempting to visit car parks and other invalid attractions

[PropaneDragon]

When tourists first enter the city the game still decides where to make them go. This usually leads to them deciding a car park is a lovely visiting place.

[benzoll37]

After update 21/7/18:
They continue stopping in car parkings.

Edit.- Also in park car of entries to parks (PARKLIFE) and for example in new unique building "city arch", haha
https://steamcommunity.com/sharedfiles/filedetails/?id=1446912785