Other cities in the world have to increase their highway infrastructure to accomodate requirements of increased traffic and maybe it is time to address this issue at BRC, without the need to restrict or impound vehicles brought to the city mainly for transportation, or with minimal artistic merit, or excessive size constraints for the regular pedestrian streets.
This proposal is to designate a street within BRC as a "ring road", and I invite positive brainstorming, or if you have a different radical solution to this issue, please post that here too for similar positive discussion.
The ring road would be sign posted as such, it would be twice as wide as a current street, and would still have the 5 mph speed limit (for safety and dust control). The ring road would be in the middle of the concentric streets (eg this year it could have been Saturn - a real "ring" road - pun intended).
To allow vehicular travel to the no mans land between Esplanade and The Man, the ring road would continue in a large arc out in no mans land to a second ring road half way between Esplanade and the man. eg:

Note: click image for zoom in - or download a <u>high res (200k GIF)</u>
The ring road would be designated (and signed) as pedestrian free, but as with all streets all vehicles still must yield to pedestrians (eg when they are crossing or unware they are walking on the ring road).
Bicycles are vehicles so would be allowed to travel on the ring road.
There would be areas set aside at regular interval in the populated areas of the city (eg 3:00, 6:00, 9:00 - see above "P" signs) off the highway designated as parking lots for such traffic, and drivers would leave their non-art vehicle to go to their camps, the plazas, or center camp. The ring road would be designated as no stopping for vehicles, except out in no mans land above the temple, vehicles can pull to the shoulder of the highway at any point for passengers to view a nearby art piece, but south of the temple, there are designated parking lots which must be used for stopping.
Vehicles would need to be licensed, and can obtain their license on arrival to BRC (no preapproval).
Day and night licenses would need to be granted depending on the capabilities of the vehicle.
Still no normal "street legal" cars, trucks, or vans would be allowed (unless for exceptional reasons, such as handicapped transportation requirements, or ranger, LEO, and service vehicles). Maybe the licenses would obtained for a fee.
I like the idea of a "bond" to ensure good behavior, returned on departure, but reduced for bad behavior, and not returned for excessive bad behavior.