Stop treating access routes as simple tarmacadam jobs. You need to hit Part M...

https://dlf-ne.org/the-true-cost-of-skipping-prep-work-why-your-car-park-is-doomed-to-early-failure/

Stop treating access routes as simple tarmacadam jobs. You need to hit Part M regs and test to BS 7976 for slip resistance. Don't skip vetting your crew; use CHAS to ensure quality. It saves you from future liability and expensive rework.