Just thought I would share our experience of installing an hydraulic rising bollard for access control both in and out of our caravan park using ANPR. The bollard was provided by Frontier Pitts and the ANPR plus all software integration with our reservation system was provided by Alph Touch (they do mainly home automation systems but are very willing to solve any system requirements). Despite warnings that a single access/entry & exit point was likely to be problematic we are very pleased with the outcome. The only cabling to the system is a power supply all other comms from the office is by wifi. Alph Touch worked with us to develop software solutions to all the various options to deal with vehicles wanting to exit at the same time as arrivals and now the simple traffic light system regulates the flow perfectly. It is highly responsive and the system will work out if there is a car waiting so it does not drive the bollard back up only to drop it again, it just adjusts the traffic lights accordingly. Might not be the cheapest option but looks great and clients like it.