workzonesafety.org - Field Guide for the Use and Placement of Shadow Vehicles in Work Zones - Comments http://www.workzonesafety.org/fhwa_wz_grant/atssa/area2_shadow_vehicles Comments for "Field Guide for the Use and Placement of Shadow Vehicles in Work Zones" en Field Guide for the Use and Placement of Shadow Vehicles in Work Zones http://www.workzonesafety.org/fhwa_wz_grant/atssa/area2_shadow_vehicles http://www.workzonesafety.org/fhwa_wz_grant/atssa/area2_shadow_vehicles#comment Shadow Vehicles Work Zone Traffic Control FHWA Work Zone Safety Grant Program Wed, 05 Nov 2008 09:22:50 -0600 h-yu 9108 at http://www.workzonesafety.org