Hi,,,,, I am using a road with traffic on it and I would like to add a lorry or two or a couple of buses too, is there a tutorial of how to do this please as it would just make the route a bit more authentic please.Len
In both cases you are limited to 15 different types of road vehicles being visible at the same time. If the route or region you are using has already reached that number then you will need to substitute existing cars for your new ones. I know that some users have claimed that you can have up to 100 or more different types of road vehicles in a region or route but no-one has yet shown me that more than 15 will be visible at any one time.
You should note that the carrate tag is now obsolete - this tag was used to control the rate at which cars will appear in a route (e.g. cars per minute). Also note that not all roads are set to carry car traffic.