Contents 1 General Provisions..1 2 Terms and Symbols…2 2.1Tems…2 2.2 Symbols …3 3 Basic Requirements...........5 4 General Design…9 4.1 General Requirements 9 4.2 Key Points of General Design 9 5 Cross Section…l1 5.1 General Requirements.............................11 5.2 Cross Section Type.......11 5.3 Cross Section Element and Width..16 5.4 Crown and Cross Slope.........................19 5.5Cubs…20 6 Horizontal Alignment..............21 6.1 General Requirements......... 21 6.2 Straight Line…21 6.3 Horizontal Curve..............21 6.4 Curve Superelevation......................................24 65 Curve Widening… 25 6.6 Stopping Sight Distance...................26 6.7 Opening on Separator or Curb Side.27 7Vertical Alignment......28 7.1 General Requirements.... 28 7.2 Longitudinal Gradient.................28Contents 1 General Provisions ............................................……. 1 2 Terms and Symbols ................................…........ .…. 2 2.1 Tenns …...... .……........ .……........ .………………….. 2 2. 2 Syrnbols ..........................……....... .…....... .……… 3 3 Basic Requirements ..••.••.• ................….......….... •••.•. 5 4 General Design • • • • •• • • • . . • ••• . .…........ .…................. .…. 9 4. 1 General Requirements …………………………………... ... 9 4. 2 Key Points of General Design ……...... .………………….. 9 5 Cross Section ........…........ .…....... .…............... .….11 5. 1 General Requirements ……...... .………………………….. 11 5.2 Cross Section Type …………..... .….... .………………….11 5. 3 Cross Section Element and Width ................……..... ... 16 5. 4 Crown and Cross Slope ………………….............. .…… 19 5.5 Curbs ……………………............ .…………….. ... ... 20 6 Horizontal Alignment •.•••• •.• .......….......................... 21 6. 1 General Requirements ……………...... .………………….. 21 6. 2 Straight Line ……………………………………………… 21 6. 3 Horizontal Curve …………………………………...... ... 21 6. 4 Curve Superelevation ………................ .……….... ... ... 24 6. 5 Curve Widening ………....... .……........ .……..... .……. 25 6. 6 Stopping Sight Distance …………………………………… 26 6. 7 Opening on Separator or Curb Side .……………….. ......... 27 7 Vertical Alignment .•• •••••. ........…............................ 28 7. 1 General Requirements ……………………………………… 28 7.2 Longitudinal Gradient ……………………………………… 28 8