National freeway 4 is a freeway that begins in Qingshui District, Taichung at Provincial Highway 17 and ends in Tanzi District at Provincial Highway 74.
Length
The total length is 28.0 km (17.4 miles). ==Major cities along the route==
Lanes
The lanes in each direction are listed below. • 3 lanes: • Qingshui Top - Fengshi IC • 2 lanes: • Fengshi IC-Tanzi System ==See also==