W1 - Sycamore, Ash - Reduce secondary branches back to car park edge to reduce risk to car park users. The extent of the reduction varies for each tree hence the reference to a fixed feature (car park edge) G1 - Sycamore, Ash & Maple - Reduce secondary branches back to car park edge to reduce risk to car park users. The extent of the reduction varies for each tree hence the reference to a fixed feature (car park edge)