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EXHIBIT 3: 2009 MUTCD, SECTION 2B.13 Page Ss 2009 Edition Guidance: 09 A Rcduced Speed Lirrrr Alicad t 11? -5 of ll'3-5ai sign (sec Sectio)) 2C.: S :�:,;•; +and users of reduced speed zone ulicic the speed limit is being reduced by n:cc: ' _ _ r e ngmecrrni Jndgmcnt b)"heares the need folaei anee notice to coniph u irh the vowed 5Pcr,i .. se States and local agencies should conduct engineering studies ro ree(nluate non -statutory speed limits on segn)ents of their roadways Thar hmr undergone sign rnr)r rlmnges since the last ?clew. such ns rile addition or rlinunation ofpa)"king or dui nmiil's, rhanges in tire number of travel lanes, changes in the co> figrnnrion of bicycle hues. chrnges in n'affc Control signal coordination. or sig+nifirnnt changes in traffic rohnnes. is \o more than *in cc speed limirs should be displaved on ang one Speed Lunir sign w' assemble. n A'hen a speed limn a ithin a speed done is posted. it should be s, u1sin 5 niph of the SS"' percentile speed of free-fiou ing traffic. +3 Spred studies far signalized intersection approaches should be taken outside the influence arra of the traffic conal signal. Onch is generally consideicd ro be approvi+nareA.1 ? mile. to avoid obtaining skewed results fa - the S5" percentile speed. Support: ,a Advance «"rising signs and other traffic control devices to attract the motorists attention to a ssgiahzed intersection are usually more effective than a reduced speed limit zone. Guidance: S An r&lsorl' speed .plaque (see Section 2C.O8+ mounted belolr a um"ning sign should be used to unin gond users of an adwsw.r Spced for a roadway condition. A Spred Lunir sign should nor be used fw'this situation. Option: it Other factors that may be considered afien establishing or reevaluating speed limits are the folli n aig A. Road characteristics. shoulder condition. grade. alignment. and sight distance: B. The pace: C. Roadside development and enrrronnnent. D. Paitnig piaeuces wd pedestriiti activity: and E. Reported crash experience for at least a 12 -month period. a Itvo types of Speed Limit signs may be used: one to designate passenger car speeds, including any nighttime utforntation in nunimuni speed limit that might apply: and the other to show any special speed hnuts for trucks and other vehicles. se A changeable Message sign that changes the speed haat for traffic and annbient conditions may be installed provided that the appropriate speed limit is displayed at the proper tines. m A changeable message sign that displays to approaching drivers the speed at which they are traveling may be installed in conjunction With a Speed Limit sign. Guidance: ro If a cismngerble inessege sign displaving approach speeds is wsmllcd. the legend FOUR SPEED n MPH or such similar legend should be displayed. The rola' of the changeable nessage legend should be a yrllos, legend on a black brckgrwmd or The res else of these coloi"s. Support: a, Advisory Speed Was and plaques are discussed in Sections 'C.OS and 2C.14. Temporary Traffic Control Zone Speed signs are discussed in Par 6. The WORK ZONE (G20-5aP) plaque upended for installation above a Speed Lnut sign is disenssed in Section 6F.12. School Speed Emit signs are discussed in Section 78.15. Section 2B.14 Truck Bleed 1-li nit Plaque tR2-2Pn Standard: m ll'liere a special speed limit applies to trucks or other vehicles, the legend TRUCKS Ka or such similar legend shall be displayed below the legend Speed Limit S -i- on the same sign or on a separate R2-21) plaque (see Figure 2133) below the standard legend. Section 2B.15 Night Spee 1 Lonak Paque (R')-3Pt Standard: Rltere different speed limits are prescribed for day and night. both limits shall be poste& sea, 21113 m:B Is December M Page 5 of 5 PUBLIC WORKS BOARD OF COUNTY COMMISSIONERS ENGINEER'S REPORT