Yes, I have experienced introducing tolling in our country(India). It was a great experience and a matter of excitement. The communication aspects were also good. The staffs and the volunteers who were placed at the site were very helpful and eager to help common people. They used to guide public about the charges and the preferred lane for driving safely.
We all know that the roads are the most important component for economic development and for that different countries are using different technical support to build their roads very smooth and place of safe driving. In this whole process, a huge financial support is required and it is "tolling" which is being used to collect money from the citizens who want to use that road.
An introduction of tolling is somehow a matter of financial inclusion but in other hands, it plays a great role to collect money for the betterment of roads.
For the communication, the on spot volunteers used to have different kinds of sign & symbols in their hands which play an important role for public to understand the correct direction, speed limit, correct lane of dining etc. Sometimes hand microphones were being used to announce some important message while driving.
At one side of road, there were different rules and regulation mentioned in big hoardings.