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138 APPENDIX R Non-MUTCD Items ALASKA U-turn arrows and combination U-turn/left-turn arrows are available for use. Overhead snow poles (delineators cantilevered to the edge line suspended from a steel pipe that is mounted 12 ft from the edge line) are available. MONTANA Pavement marking design standards for historical marker turn- CALIFORNIA outs, mailbox turnouts, and chain-up areas are included in the Montana Traffic Engineering Manual. A STOP pavement message is placed such that the tops of the letters are 8 ft from the stop line in advance of all stop lines at signalized or STOP sign controlled intersections. NEW YORK Wrong-way arrows (one in each direction) are used at A diverge arrow is included in the pavement marking symbols locations near intersections and at a maximum of one-mile that are shown on Sheet M685-5R1 (5 of 5) of New York's spacing where motorists could perceive that they are on a standard design sheets. one-way roadway when, in fact, they are on a two-lane, two- way highway. Following are some typical situations: When a climbing lane is provided on a one-way road- way, a double broken line (10-ft segments with 30-ft gaps) Construction sites where a two-lane highway is being starts at the beginning of the full-width lane and ends 600 ft converted to a freeway or an expressway. from the end of the full-width lane. A partial barrier line (a Two-lane, two-way highways where ultimate freeway 4-in.-wide solid line on the left-hand side and a 4-in.-wide or expressway right-of-way has been purchased and broken line with 10-ft segments and 30-ft gaps on the right- grading for the full width has been completed. hand side) starts at the end of the double broken line and Two-lane, two-way highways following long sections ends 100 ft from the end of the full-width lane. Lane-reduction of multi-lane freeway or expressway. arrows are not shown. The SLOW SCHOOL XING pavement message shall be used in advance of all yellow school crosswalks that are not VIRGINIA controlled by STOP signs, YIELD signs, or traffic signals. The words shall be yellow with the final word in the sequence, Standards for the transition from a left-turn lane in one XING, at least 100 ft in advance of the crosswalk. direction to a left-turn lane in the other direction in a paved center median area are shown in Virginia's design The SCHOOL XING pavement message shall be used in standards. advance of all white school crosswalks. DISTRICT OF COLUMBIA The SCHOOL pavement message shall be restricted to a single lane. On Pennsylvania Avenue between 3rd Street and 15th Street all pavement markings are white, including the centerline, COLORADO because this is a special historic street and does not follow the MUTCD. Solid 8-in.-wide lane lines separating mandatory left-turn lanes from adjacent through lanes are extended beyond the stop line and may be curved slightly to the left just before LOS ANGELES, CA they terminate. Lane lines separating mandatory right-turn lanes from adjacent through lanes are extended beyond the Pavement markings associated with pedestrians and schools, stop line to the extension of the edge line of the cross street such as crosswalks and school pavement messages, may be and are curved slightly to the right just before they terminate. yellow. GEORGIA NEW YORK, NY A different spacing pattern is specified for lane-use arrows A gridlock box is shown inside of high-visibility cross- and ONLY messages on intersection approaches at the end walks on Drawing TCW-1 of New York City's standard of exit ramps. drawings.