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j <br /> a ' <br /> ' I <br /> a o <br /> c <br /> ri <br /> '-rra fo>51 naJ TiminY and coordination Manual <br /> rotectec Permissive,and Permissive operation <br /> Varying Between Protected,.P ,� t <br /> As discussed above, the FYA <br /> can be considered a variable operation signal indication, Consider the , <br /> following items: E' <br /> V" All FYA signals may vary p va operation between protected, protected/permissive, and permissive <br /> , <br /> operation at various times of the day and night. f <br /> ed to be anal zed individually to determine the time--o'F day FYA <br /> Each signal approach w111 ne Y <br /> •o considering the following criteria. <br /> operation by f <br /> osin throu hs at various times of day <br /> a� Cross-product volumes of left turns and opp g g <br /> 1: <br /> b3 Speed limit <br /> c) sight distance limitations <br /> dumber of opposing through lanes <br /> e) Double left turn lanes or single left turn lanes <br /> f) Opposing left turn lane offset r <br /> C <br /> k- <br /> t. <br /> g) Cross street or mainline approach <br /> y <br /> h) Comprehensive left turn crash analysis of approaches with similar characteristics <br /> Test for Protected only operation 24 Hours per Day <br /> • ld run in the most restrictive Protected-Only mode 24 hours per <br /> In some cases,the left turn indication sho u <br /> Protected Only Left`burn operation Guidelines. If the answer to question <br /> day.Refer to Exhibit 3�-1.3 for the Pro Y . <br /> I or 2 is"'yes",then protected operation should be used throughout the day. <br /> Exhibit 3-13 Part 1:Protected-'only Left Turn Operation 24 Hours per Bay � <br /> Part 11.Protected only Operation•-24 hrs/day Guidelines <br /> �r <br /> Question 1R conflicting Left Turns <br /> __•:; =. , ' •. •• .:: '�es;then use <br /> ' `'osiri left turn aths convict .• • .1:'fhe•;ansvuer iS Y� _ <br /> •, nd the ppp., -g. . . .. .. -.•;..:.;y , <br /> . •YPs 't:- _•, .° _ _ • . .Protdc ed.opeiratfon.24 hoursjday. <br /> • • z ` - I tle"artsvue'$sK6.• roceed to one <br /> next question. •._ <br /> Question 2:Limited Sight Distance <br /> _• ,If the'ansv�er is�'esi-then use <br /> ever limited sight distance as > <br /> UQ�s the left turner have y . , x „. <br /> ' • t� Yc n��arnetric Prptected operaiion.214 hoursjday. <br /> defiried in the currentAASHTo A Pali y . . . • • . - <br /> �;? >1 f the ahgiv er is h o,�rcjceed to part 2 r <br /> Des%gns of Highways and streets . <br /> ,. <br /> Ro to cheek for FYA TOQ <br /> i.- ..- -;:.. 's®Profiece'd.c3 ,eratton'Z4 hours da --,.., :•'_= . .. _ <br /> T }, n jar }�t �+. (�tL'S [ol�;'A"2.•u. _ �,.,..y =.•;.. ,»�'� S '.; ►. <br /> i If' he.A6sWi r=isYe•:p,QU _- ! -_ =r;► i•;s _ �•,_.•';' '. - '� _. . 1.:__., <br /> s Q•to�all oftheaboue proc:.eedQ;Pai �2:•' <br /> : h =Answer. N 1 ,. •. :•.•.:.'i : '•=1:• .�: <br /> "'yes" in Part I then Protected-only operation is suggested <br /> If•the answer is yes to any of the questions � • .1�� �f (Exhibit 3�1�• to <br /> answer to all of the questions is no :then proceed to Fart 2 � <br /> throughout the day. If the , <br /> check for permissive FYA operation by time of day. <br /> F; <br /> Intersection Concepts <br /> Page ( 3-28 Local Int is May 2011 <br /> p <br /> i <br />