Site Suitability for Safer Vehicles

The CLOCS Standard requires and encourages fleet operators to use vehicles with enhanced safety features such as greater direct vision, lower axle heights and side under-run protection. The CLOCS Standard also requires construction clients to ensure construction, supply and waste sites are suitable for vehicles fitted with enhanced safety features. 

To support these requirements and encourage the use of safer vehicles, an assessment for on-site ground conditions has been developed. The tools and guidance below help support both clients and fleet operators in applying their assessment.

CLOCS Handbook – Assessment for on-site ground conditions

For site operators, construction clients and principal contractors to rate your sites

Follow the instructions within the assessment for on-site conditions assessment handbook to evaluate your construction, supply or waste site.  

Assessment is based on four key criteria – 

  • approach angle
  • material type
  • rutting and bumps  
  • water

The overall site rating is based on the lowest rated of these four criteria. 

Site operators should add or update their site rating via the on-site ground conditions assessment form below or via this link:  


Once assessments have been completed and submitted they will be validated and loaded into the Site Suitability for Safer Vehicles directory.

Site Suitability for Safer Vehicles directory

For fleet operators to locate and view sites that are suitable for safer vehicle access.

The Site Suitability for Safer Vehicles directory allows fleet operators to view sites within their chosen region that have submitted on-site ground condition assessments and identify their suitability for vehicle access. On the directory map the highest rated sites (C5) are identified with a blue dot, C4 sites are green, C3 sites are yellow, C2 sites are orange, C1 sites are red and identified unassessed site are grey. Site ratings and categories can be filtered using the check boxes to the left on the map or specific sites searched for using the search function. Additional information on each of the sites can be access through hovering over the site on the map.