Chapter 4: Local Road Surface Treatment Options 124 Table 4.7 DPWH Design Standards for Tourism and Farm-to-Market Roads Design Element Tourism Roads Farm-to-Market Roads Pavement Type Portland Cement Con- Portland Cement Concrete crete Pavement (PCCP) Pavement (PCCP) • Minimum of 4.0 m for two-lanes with average Pavement Width Minimum of 6.1 m for two daily traiffc (ADT) of less lanes than 200 • Minimum of 5.0 m for two-lanes with average daily traiffc (ADT) of • Minimum of 230 mm • Minimum of 150 mm (6 (9 in) in) Pavement • Higher thickness of • Higher thickness of Thickness pavement may be pavement may be adopted but shall adopted but shall be be veriifed from veriifed from pavement pavement design design analysis using Shoulder • Minimum of 1.5 m • Minimum of 1.5 m • Width • Minimum of gravel • Minimum of gravel • Material surfacing surfacing Roadway Cross 1.5% for PCCP • 1.5% for PCCP Slope Shoulder Cross 3.0% for gravel surfacing • 3.0% for gravel surfacing Slope Radius of Minimum of 50 m • Minimum of 30 m Horizontal Curve Length of Tangent Minimum length of 30 m between Reverse • Minimum length of 30 m Curves