pavement for pedestrians in the middle of the two way road or highways at urban or city sides and footpath made of interlock

accident asphalt civil company concrete contracting design driveway engineering flush footpath grey heavy highway highways infrastructure interlock interlocking kerb lane lanes laying lines mark marking markings middle pave pavement paving pedestrian pedestrians people person precast protection red road roadways safe sign signs standard stones straight tarmac two walking way white yellow