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dD <br />4D <br />• <br />0 <br />Topic #625-000-OOLi <br />Plans Preparation Manual - Metric <br />2.8 Curves ...................... ........... 2-14 <br />2.8.1 Horizontal Curves ....... ................... <br />2.8.1.1 Supplemental Alignment Control (Mainline) .... 2-10 <br />2.8.1.2 Supplemental Alignment Control (intersections) . 2-12 <br />- 2.$.1.3 Roadway Transitions ................... . <br />2.8.2 Vertical Curves .................... I ............ <br />2-12 <br />2.9 Superelevation.................... ......... .......... 2-13 <br />2.10 Vertical Clearance .................... • . • ....... .....2-142-14 <br />2.10.1 Vertical Clearance over Water .................. . <br />2.11 <br />Horizontal Clearance ................................. <br />.2-1E <br />2.12 <br />Clear Zones ...... ....................... ...... <br />..... <br />2-17 <br />2.13 <br />intersections ........................ • ....... <br />2.13.1 Circular Intersections (Roundabouts) ............... <br />2-17 <br />2.13.2 Queue Length for Unsignalized Intersections ........ <br />2-17 <br />2-172-18 <br />2.14 <br />Interchanges ................................ <br />2.14.1 Limited Access Limits at Interchanges ............ <br />..,.... <br />. <br />2.14.2 Median Openings at interchanges ............ <br />. 2-18 <br />... .2-18 <br />2.14.3 Ramp Widths ............................... <br />. <br />2.15 <br />Lighting Criteria......................................2-19 <br />Introduction to Criteria Tables and Figures ...................... <br />. 2-2a <br />2 -ii <br />f]esign Geornetrics &Criteria <br />