In the case of public safety affecting public rights-of-ways or flow of vehicular traffic, the Director of Public Works, in consultation with the Township Forester and the Township Engineer, shall have the power to notify the owner of any real estate property to remove or prune the trees on private property. If, after notification, the owner fails to remove or prune such trees, the Director of Public Works shall have the power to remove the trees and charge the actual cost thereof to such owner. The Director of Public Works shall also have the power to contract with the owner of any real estate in the municipality for the purpose of removing trees in accordance with this section and to charge the actual cost to the Township thereof to such owner. If the payment is not made on demand, the Director of Public Works may certify the actual cost thereof to the collector of taxes, whereupon the sum so certified shall be collected by the collector as other taxes or real property are collected in the Township.