The final project design of geometric and rigid pavement thickness in boundary
road Palembang – Tanjung Api-Api STA 41+500 – STA 50+000. The project is
located on the road that connect from Palembang city to the port of Tanjung Api-
Api on Banyuasin region which is the special economic zones of South Sumatera
Province. Obtained from the calculation of average day traffic 36420,42 smp
road is classified in class I (main street) which has a value > 20.000 smp on
highway geometric planning regulations (1970) with a street plan of 70 km/hours.
The basic soil load capacity of 7.35% by using 6 pieces bend include 1 spiralspiral,
2 full circle, and 3 spiral circle spiral. Road surface using a rigid
pavement K-350 with a thick layer of 20 cm, lean concrete K-175 with a thick
layer of 10 cm, while the sub-base layer using the aggregate Class B with a thick
layer of 15 cm. Road development is carried out within 258 days of work with a
total fund of Rp 83.130.611.000,00 (eighty three billion one hundred and thirty
million six hundred and eleven thousand rupiahs). Based on the planning, the
authors concluded that the design of geometric and rigid pavement subgrade is
affected by the load, grade roads, and traffic growth.
Key word : road, geometric design, thickness of rigid pavemen
