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

https://front-wiki.win/index.php/The_Procurement_Guide:_What_Standards_Should_I_Put_in_a_Car_Park_Line_Marking_Tender_Pack%3F

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.