ConductPHtoconsiderspeedreductionNo81Road

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EXHIBIT 3: 2009 MUTCD, SECTION 26.13 Page 5S 2009 Edition Guidance: 09 A Redured Speed Lamu.i?c:,S it:% of IV3-5ar sign +sec Section 2C'.3Sr should be used to i joint road users of r reduced speed zonc i.:?err t;;c speed firms is being reduced by more than 10 mph. or it here engineering )udgmtent indtcaes the need for advotce notice to connphit ith the posted speed limit ahead. is States and local agencies should conduct engineering studies to reevaluate non -statutory speed limits on segments of thea roedtrri's that hme undergone significant changes since the lost irwcis; .such as the addition or elimination ofparkbtg a' dnvniays. chorges in the number of not el tans. changes an the corfignration of bic_.ele imus. changes in nnrfic coraco! signal coo'dination. or significant changes in Traffic volumes. n No more than three speed limirs should be displaced of any one Speed Lunit sign o' assembh. 12 When r speed limn uIthin a speed :ore is posted, it should be within 5 mph of the SS"-pereentile speed of fire-fioiving traffic. in Speed studies for signaized intersection appioadus should be takeri onside the influence area of the traffic conrot signal. nhnrh is generally ro sideted to be appy o.vimrrch 1'2 male. to avoid obrainuig skei, ed results for the 85" perrenule speed. Support: s. Advance panning signs and other traffic control devices to attract the motorists attenuan to a signalized intersection are usually more effective than a reduced speed limit zone. Guidance.- 15 uidance:u An rds ison speed pirrue ,sce Section 2C.03t moumted below a ivaming sign should be used to it cru road uses of o; rrivrsot;r speer.'far C, roadum condnio:. A Speed Lind? sign should not be used for this situation. Option: is Other factors that may be considered when establishing in reevaluating speed limits are the following: A Road characteristics. shoulder condition. ¢rade. alr_enment. and sighs distance. B. The pace. - C. Roadside development and envhonnxnt: D Parking practices and pedestrian activity. and E. Reported Mill experience for at least a 12 -month period. n Tuv tyyes of Speed Linut signs may be used: out to designate passeuger car speeds, including any nighttine mforniation or nmmnwm speed hmut that aught apply. and the other to show any special speed hunts for tuicks and other vehicles. se A changeable message sign that changes the speed hunt for traffic and ambient conditions may be installed prm•ided that the appropriate speed limit is displayed at the proper times. io A changeable message sign that displays to approaclung drivers the speed at which they are traveling may be installed in conjunction pith a Speed Limit sign. Guidance: x 1f a changeable rnessage sign displarbtg approach speeds is installed. the legend )OUR SPEED Y.Y.b1PH or' such sunila- legend should be displayed. The color of the changeable message legend should be a ydtov lrgend at a black bre.kpaund o'the tet else of these calors. Support: z: AdvisorN Speed signs and plaques are discussed in Sections 2C.OS and 'C I.4. Temporary Traffic Control Zone Speed signs are discussed is Part b. The NORK ZONE (G20-5ali) plaque upended for installation above a Speed Limit stem is discussed in Section tiF 12. School Speed Limit signs are discussedin Section 76.15. Section 211.13 Truck Speed Limit Plaque tB2-21in Standard: o• Where a special speed limit applies to trucks or other vehicles. the legend TRUCKS S% or such shuilar legend shall be displayed below the legend Speed Limit SS car the same sign or on a separate 112-21) plaque (see Figure 2B -3i belmv the standard legend. Section 211.19 -Night Speed Litnit Plaque iR2.311i Standard: Where different speed lini is are prescribed for day and night. both limits shall be posted. b 211 Ir to :13 15 D.']C:9 Page 5 of 5 PUBLIC WORKS BOARD OF COUNTY COMMISSIONERS ENGINEER'S REPORT