05/09/1955 Meeting - Laserfiche WebLink

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r JJ (r) C' . 'il?)o ------------------- ----~._-- -. --. - .. '"- - - .- ~ - - ~~ . "'* -;,. - .~ ---_.---------_._--~- -~-~-~-----_._~---~._. -----------~_._-- -. _0. ;,.",. - _ _.,-.-.'_.-__.""_ __...____~_ ~ __, _~. _ .. _ . '_ .. _. _ _ _ __ . e -----'-.- ._-_..-,..~----~-----~~ --------,--.--.' --....- -.- "." . "----'---'--- ~-- ------- -----, --"-' .',_. -~ - -~---- - ..'-.- --- -----~--~~...- - -_'___' __ - --.---___~_ --.---,0"- ______.____________ _~.____ ___ __~'__~_ _ ________ ___ ________,____ __ I. ,. CROSSWALKS:ACROSS 13TH AVENUE BETWEEN KINCAID AND UNIVERSITY 'STREETS - THE: SUBJECT Of ~EDESTRIAN~tROS*IN~~6N 13TH Q~'THEUNIVERSITY CAMPUS'WAS BROU~HTOP BY THE CITY:M~NAGER AND THE TRAFFIC ENGINEER. IT WAS PROPOSED THAT THE PAINTING OF TWO 20 FOOT CROSSWALKS ACROSS 13T~ AVENUE WOUL~ eONTRIBUfE"MUCH TO THE SAFETY OF PEDEStRliNS CROSSING THfs STREET. IT IS THt,-RECOMMENDATION OF THE COMMITTEE, TO THE COUNCIL, THAT TWO 20 FOOT CROSSWALKS BE PAINTED ON 13TH AVENUE BETWEEN KINCAID AND UNIVERSITY STREETS AT LOCATIONS WHICH WILL - SERVE THIS AREA. 2. LEFT TURN LANES ON SUCH INTERSECTIONS AS 11TH AND OAK, AND 11TH AND OLIVE - IT WAS EXPLAlNED"BY THE 'CITY MANAGER AND THE TRArFIC ENGINtER 1HAT A;siTUATION IS PRESENT Ai IMPORTANT LEFT TURN INTERSECTIO~S WHICH COULD BE IMPRaV~D BY'THE-INST~(LATjON OF RAISED BARS ON THE SURrACE OF THE STREET TO ASSIST IN CHANNELING TRAFFIC. AN ILLUSTRATION-'Ot' THIS IS AT THE CORNER OF 11TH AVENUE AND OLIVE STREET WHERE SOME OF THE EAST BOUND TRAFFIC DESIRES to TURN NORTH~ON',OLI"'E; BUT WHERE ,THE MAJOR PORTION OF THE TRAFFIC DESIRES TO GO THROUGH ON:I ITH AVENUE~ THE PROPOsA~ HERE IS TO MAKE AN ISLAND OF ~AISED BARS, SOMETI~ES CALL~D "JIGGLEBAR~", JUST EAST OF THE INTERSECTION TO ASSIST IN'CHA~NELIN~ THE THROUG~ .TRAFFIC INTO THE PROPtRLANE. -IT WAS EX~LAINED 1~AT THE LANE~ ~PPROACHING THIS INTtR- SECTION ARE SIGNED AT PRESENT "LEFT TURN ONLY" AND, "THROUGH LANE", BUT IN SPITE 'OF IT THERE APPEARS TO BE SOME CONFUSION. IT IS THE RECOMMENDATION Of THE COMMITTEE THAT AUTHORIZATION BE GIVEN FOR THE IN- STALLATION OF THEat RAISED BARS~AT'rMPORTANT' INTERSECTIONS WHERE THEY CAN BE USED TO ASSIST IN THE MOVEMENT OF TRAFFIC. 3. HI GHWAY, TRAFF I~C HAZARD,nON OVE~HEAD STRucniRE AT JUDKi NSPOI NT - AFTER RELATI NG TO THE COM~ITTEE THAT ,EUGENE'S bA1tST~T~AFFjt FATALITY AND THE FATALITY PREfEED~NG tT HAD OCCURRED ON THE HIGHWAY OVERHEAD NEAR',JUDK'I'NS POI NT, THE, CITY .MANAGE-R AND 'THE' TRAFF I C ENGI NEER I N- DICATED THAT THEY THOUGHT THAT IT WOULD BE WELL TO REQUEST THE STATE HIGHWAY DEPARTMENT TO GIVE CAREFOL,STU~Y ,TO'T~IS 'O~ERH~AD'jTRUCTURE TO DETERMINE IF SOM~THING CAN"~E'DONE TO ELI~INATE THE.HAZARO: tx~sTf~G2AT:T~IS P61NT ON THE HIGHWA~. AFTER S6ME DISCUSSION OF POSSfBLE SOLUTIONS, ITWAS RECOMMENDED'BY-TH~ COMMliTEE THAT 'THE CITY MANAGER BE 'AUTHOR I ZED 't,o REQUEST "THE STATE HI GHWAY DEPARTME NT TO MAKE A STUDY OF THE SITUATION TO DETERMt'NE:WHAT COULD BE DONE TO ELIMINATE THE HAZARD ON-THIS OVERHEAD STRUCTURE. 4. REPORT ,ON THE OPERAtiON OF SI GNALS AT BROADWAY AND WI LLAMETTE STREETS - THE- FOLLOWI NG REPORT ONTHIS,iNtERSECTION WAS MADE TO THE PUBCIC:SAFETy:COMMr'TTEE BY THE TRA'F"FIC ENGINEER. ALTHOUGH ~O MCTION IS INDl'CAiEDj THE REPORT IS ~UBMITTED fOR THE BENEFrt OF T~t COUNCIL. .. 1 :. "I T IS I"NTERE,STI NG TO:NOT-E THE E'FfECT OF THE 'SHORTENI NG 0.... THE GREEN I NTERVAL FOR VEHICULAR'TRAfflC lJSING WILLAMETTE A'ND BROADWAY. To BETTER UNDt'RSTAND THE ErFECT ON TRAFFIC IT IS NECESSARY TO THEORIZE A BIT. BEFORE THE CHANGEOVER, 25 SECONDS-OF GREEN AND 3 SECONDS OF AMBER WAS ALLOTTED TO WILLAMETTE STREET TRAFfiC. How ,MANY CARS COULD POSSIBLY GETTHROUGH..IN THIS:INTERVAL? If ALL C'ONDITlONS WERE 'PERF,ECT, NO STALLED MOTORS, ALERT DRIVERS, ~LLOWING 2.5 SECONDS PER ~AR, IT WOULD BE -~OSSIBlE TO GET ELEVEN CARS -PER LANE tHROUGH THE INTERSECTION PER CYCLE: THREE LANES (ONE TURN LANE) - ~3 CARS PER INTER- VAL OR 538 CARS IN A 15 MINUTE PERIOD. THE NEW GREEN TIME, 19 SECONDS AND 3 SECONDS OF AMBER, 'UNDER THE, SAME,"IDEAL CONDITIONS WOULD PERMIT 27 CARS. ptR INTElfvAL OR 550 CARS IN A 15 MINUTE PER'IOD. SINCE-ALL DR:IVERS'DO'NOT POSSE'SS THE:SAME DEG~EE OF 'ALERTNESS; THE ACTUAL COUNTS' ON WI LiLAMETTE, NORTH' OF BRO'ADWAY, SHOW THAT THE PEAK 15 MCNUTE PElfl'OD BEFORE THE CHANGE WAS 280 CAR'S"AND THE- NEXT:TWO,'HIGHEST, WERE 269 AND 267, RE'SPECTIVELY, :IN A SEVEN DAY PERIOD (APPROXIMATELY HALF THE THEORETICAL VOLUME). ONLY FIVE OF THE PRE-CHANGE COUNTS RANGED 'BtTWEEN 240 AND 245. PEAK 15 'MI Nun COUNTS -FORA SEVEN PE-R 100, AF-TER TH.E .SCRAMBLE I'NSTALLATION,SHOWE.D' THE ~~"GHtST ~A's 244 AND THE, NEXT FIVE -HI GHEST RANGfNG FROM 235 TO 240. THE BEfORE COUNT SHOWED 41 - 15 MI NUTE I NTERV'ALS OVER, 200 AND THE AFTER COUNT SHOWED 38 INTERVALS OVER 200. THE MID-DAY AVERAGE OF BOTH COUNTS WAS IN THE NEIGHBORHOOD Of '160 VEHI CLES~ BROADWAY TRAFFIC SHOWS THE SAME 24 HOUR COUNT BEFORE AND AFTER. ~HAT DO THESE .COUNTS REVEAL? FIR~T, fOR ALL PRACTIC~~_PUR~OSES, I_T ~A~ BE SAID THAT THE SAME VOLUME IS' PASSI~NG THR'OUGH ,'THE 'I NTERSECTI ON NOW AS BEFORE -THE CHANGEOVER WI TH LESS GREEN 1', ME ALLOTTED TO 'VEHioCULAR MOVEMENT. SECOND, SI NeE' TH'E :SAME -VOLUME 'I'S -'I NEVI DENCE IT .15 EA'SILY SEEN THAT TH'ERE MUST HAVE BEEN CONSIDERABLE IDLE "GREEN TIME NOT BEINVEHICLES. THIRD, THE NUMBEROf'I-5M'INU'TE INTERVALS H'AVING 200 VEHICLES-OR MORE REMAINED APPROXIMATELY THE SAME, 38 TO 41, SUGGESTING THAT NO INCREASE IN CONGESTION HAS RESULTED "FROM THE ,I NSTALLA'.TiON."'SI N'ct' nfEREHAS BEEN NO'INCREASE IN THE.'NUMBfR OF: 15 MINUTE PERIODS \ HAVING MORE THAN 200 VEHICLES. THE P'E-DESTR(AN SCRAMBLt\"CONTROL CAN BE SAI D-TOHAVEBEEN FAVORABLY ACCEPTED BY THE PIJBLI C. THE ~ASE .OF' CEFT AN'D' ''Rt"GHT -',TURNS "FROM THE ONE-WAY STREETS Ai -THE I'NTERSECTION IS AN INDICATION Of THE SUCCESS OF THE -OPERATION~'" ~ I e' 1 . I II I, :1 11 e 1 ,e