Agenda - Council - 12/14/2004 - Laserfiche WebLink

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lC. W1-8 450. x fi00 mm 18" x 24" The Chevron Alignlnen[ IWI-8} sign nlay be used provide addition:ti dlllpha$i5 and ~uidanc~ ~1' a cll811~e horizontal alignment. A Chevron. Alignment sign may be used as an alternate or SUl)plement to standard delineators on cuFves or [o the Large Arrow (W I-6~ sign. The Chevron Alignment sign shall be a vertical rectangle. No border shall be used on the Chevron ,Mignment sign. if used, Chevron Alignment signs shall be installed on the ott~side oFarum or curve, in line with and at approximately a rjght an~le to approaching traffic. A Chevron .'Mignment sign may be used on the t~r side of an intersection to in'tBrm drivers of'a change o~' horizontal alignment [hrougl~ the intersection. G~CE: Spacing ot' Chevron. Alignment signs should be such that rile road user always has at least two in view. until clxmge Jla alignment eliminates [he ne~d tl)r the signs. Chevron AJignmcm~t signs sll~,tmJd be ~;isible tbrm sufTicienr distance to pm'o~ d~ the mad user wid] adequate time [o react to tl~e change in alignment. 750 x 750 mm . 301' x 30. WT-1 a . 750 x 750 mm 30" x 30" Signs (?YT-!. W7-1a, W7-1b) . WT-lb 750 x 7~0 mm 30" x 30" GIJ'IDA~fCE: ' The Hill {W?-I) sign should be used in advance of a dow'ngrade where the length, percent of grade: horizontal curvatLu-e, end,jot other physical .~arures require specie[ precautions on the.Pm1 of road users. It should be installed in accordance with Table 2C-3.. The Hill sign and supo{emental grade (W7-3) plaque (see Section 2C.44'~ used in combination, or the W?- 1 b si=n used alone, should be installed,in advance of downgrades tbr the tbllowing conditions: A. 5% grade that is mdre than 900 m (3,000 &l in [¢ngta; B. 6% grade-that is more than 600 m (2,000 ~) in length; C. 7% grade that is more than 300 m { 1,000 ~)'in [ength; D. 8/o grade d~at is more than ?~m {750 &)in length; or E. 9% grade that is more than 150 m (500 ~)in length. These simqs should also be installed tbr steeper grades or where crash experience and f~e[d observations indicate a need. . SuPplemental plaques Isee Section 2C.44)' and larger iigns should 5~ used tbr emp!msis or where special I~ill char: acteristics exist.-,On I. onger grades, the t~se of, the distance ~WT-3a) placlue nr the combination clisrance/.grade (-W'7-3b} plaque at peric, dic intervals ol'approMmately 1.6 km (i mi) spacing should be considered. - ' Whorl the p~rc~nt grade is sinown, d~e message '~X '%" plaque shall be placed· below cbc inclined ramp/truck s~;mbol ( W.7-1 ) ~' [h'e word message HI LL ~ WT- I a) sign.