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SR-506-003-04 (2) . . ~. '5'06- &CJ3-ol/ .. ~ Santa Monica, Cal1fornia, February 8, 1978 / / J1 TO: Mayor and City Councll FEB 2 8 1978 FROM: Clty Staff SUBJECT: Proposed One-~?l Street System Introductlon ThlS report recommends a proposed one-way street system to serve the Central Buslness D1strict. Bacl<.around -I In March. 1973 the Traff1c Eng1neer prepared a traffic analysls of the down- town redevelopment project regarding traffic circulation withln and to and from the Central Business District. One of the recommendations made in that report was the adoption and installatlon of a one-way street system on certa1n streets 1n the downtown area. The report was distributed to members of the C1ty Council and Clty Staff. Subsequently, public presentations were made by the Traffic Engineer to several groups with1n the commun1ty, for example, Chamber of Commerce Transportatlon Committee and Industrlal Committee. In 1975 the Santa Monica Chamber of Commerce Transportatlon Commlttee prepared a report endorsing a llmlted one- way street system for Santa Monica (see attached). ThlS report was presented to the Chamberls Board of D1rectors who adopted a resolut10n also endorsing the limited one-way street system (see attached). Due to delays in the progress of Santa Monica Place caused in part by the Coastal Commiss1on and the recently settled lawsuit, no formal action by the II A FEB 2 8 t978 - . . , , To: Mayor and Council -2- February 8, 1978 Council has been taken on the establ1shment of a one-way system. Theoretical Advantages/Oisadvantages of One-way Streets 1. Advantages: a. Increased capac1ty 1) Usually decreases the need for expenslve street widenlng 2) In most cases curb parking ~eed not be removed b. Increased safety c. Reduced CBO travel times d. Ease of left turns e. I~creased pedestrian safety f. Simplifled slg~al phasing and improved signal progression 2. D1sadvantages: a. Increased travel dlstances b. Some loss of travel flexibility Purpose of One-way Street Proposal Barton-Aschman Associates, Inc., the traffic engineer1ng consultant flrm for Santa Mo~ica Place, in their traffic analysls endorsed the one-way street system (see attached Recomme~ded Improvements Figure No.7). They estimate that Santa Monica Place will generate 12,000 to 18,000 vehicles per day of additional traffic into the CBO wlth approx1mately 40 percent util1zing the new 5th St. freeway off-ramp. This means that 4,800 to 7,200 vehicles will be added to the estimated 12,000 that Caltrans anticlpates will be uS1ng the ~ew off-ramp after it opens. ThlS volume of traffic will tax the existlng CBO two-way street system and could result In congest1on at the intersectlons in the CBO. Such congestion would affect the success not only of Santa Monica Place but the future development of the Central BUSlness Dlstrict. ----- - , . e To: Mayor and Council -3- rebruary 8, 1978 The Fifth-Slxth Street ~orth-south pair will serve not only Santa Mon1ca Place but the entire CED better from the new Fifth Street off-ramp Slnce it will provide a more direct way to spread th1S trafflc volume out along tne east- west streets. The existing SlX parking structures on Second and Fourth Street are spaced from Broadway to Wilshlre, and it is important that convenient access to them is provided in order to spread the parklng demand over the existlng capacity. Barton-Aschman believes, and City Staff concurs, that the one-way street system proposed lS essential to realizing acceptable traffic flow 1n the vicinity of Santa Monica Place. whereas the one-way pairs would, of course, benefit trafflc flow for all trips generated through the downtown, slmply ln terms of the reta1l center, Barton-Aschman1s rat10nale for the two conversions 1S baslc. 1. Fifth Street must be one way northbound to allow the heavy north to west- bound left turn movement traveling to the retall center to occur wlthout direct oppositlon at Colorado and at Broadway They believe the mere provislon of separate left turn lanes wlth separate turn phases is inadequate. The el1mi- nation of opposing southbound flow on Flfth Street is the only viable alternatlve. 2. Barton-Aschman believes, and City Staff concurs. that the parking garage to be located at the southwest corner of Fourth Street and Broadway will require that Broadway operate one way westbound. Failure to convert to one way will result in congestion at the key lntersect10n of Fourth and Broadway, since traff1c waiting to turn left into the Broadway entrance to the garage would of necess1ty have to share the road with opposing eastbound traffic. I . e To: Mayor and Council -4- February 8, 1978 Recormnendation The Staff recommends, and Barton-Aschman concurs, that a one-way street system be approved by Councll as shown below: 1. Fifth Street one way northbound from the new Freeway off-ramp to Wilshire Blvd. 2. Slxth Street one way southbound from Wilshlre Blvd. to Colorado Ave. 3. Broadway one way westbound from L1ncoln Blvd. to Ocean Ave. 4. Arlzona Ave. one way eastbound from Ocean Ave. to Lincoln Blvd. It lS recommended that this be 1mplemented in the followlng manner: l. Upon completlon of the new Fifth Street Freeway off-ramp in January, 1979, install the Fifth-Sixth Street one-way north-southbound palr from the off-ramp to Wilshire 2. Upon complet10n of the Santa Monica Place. install the Broadway-Arizona west-eastbound one-way pair from Lincoln Blvd. to Ocean Ave. Staff believes this procedure wlll permit the motorist to alter his drlvlng hab1ts ln a more orderly fash1on. Prepared by: S. E. Scholl E. D. McAteer J. J. Wrenn Att. - 3 JJ\~: gw . . '\" 1\1 0 I\t . e f;~0 'r- ~, '" -.:,..--, .. --;:- S () .~ - ,-. > ,--, '. - . . . :.- ~ ::r. t.:~:~~;"' ~ :"~?-~'~k"~ t.J :_ -:-~~~-::.=<: ~~:::..~~-"O.~ C::: . ";Y 'i.."~ ~~-;::::"'"-..,..,= -r-'I4J ~ ~-- ~.- =----~ - ~;'~L-~-- ~-- -=7~ e ":"': -~- - - - .--<; ~~-f.. -~~_=-'~ .~- 0 OF C - July 30, 1975 to: City }~nager James Williams Mayor Nat Trives Mayor Pro Tem. Donna Swink Councilman Seymour Cohen Counci lroan Fred Judson Councilman John HcCloakey Councilman Pieter Van Den Steermoven Councilwoman Christine Reed As you may be aware~ the Chamber's Transportation-Parking & Traffic Co~ttee. headed by ChairwAn Dave Lederer) has for some time been studying a proposed preliminary "one-way street patternU suggested by Mr. Ja'Ilee. Wrenn, Santa Monica's Parking & Traffic Engineer. The accompanying resolution was adopted by the Board of Directors of the Santa }~nica Chamber of Commerce at their June 10th meeting, after being recommended by its Transportat!on Cor-~ittee. It is the hope of the Transportation Committee and the Board that the proposal as outlined could he implemented at the earliest possible time. Cordially, Sam Porter, CCE Executive Vice President SP : a 1 enclosures cc: Mr. James wrennV Parking & Traffic Engineer .: r;-~.. .."', 'I'fll$ e ~~ -... I - . ..."..J;"'~' -- ACC~ECITED ~_........ --..~~ Ser-.'1ng the Sa'lta Momca'Bay Area. 200 San/a Mafllca Boulevard, Santa Monica, Ca(lfcrn:a 90401 . (2t3} 393-9B25 . . , . . SANTA MONICA CHh'1BER OF COM}1ERCE RES 0 L UTI 0 N ---------- f WHEREAS, the subject of one-way streets has been under consideration by the City of Santa Monica for many years, and WHEREAS, Santa Honlcs has experienced continuous growth In popula.. tion and business activity over the past several years and this trend 18 expected to continue, and h~EREAS, Santa Monica residents are concerned about traffic conges- tion and increased accidents from greater activity in the community, as the residents overwhelmingly wish to retain a pleasant "home town" character in the city with easy and safe driving, parking and transportation, and WHEREAS, a study by the Chamber of Commerce Transportation Commit- tee clearly shows that one-way street systems are a proven long run method of improving the safety and efficiency of urban streets; NOW, THEREFORE, BE IT RESOLVED that the Santa Monica Chamber of Cocmerce, representing over 900 members, endorses the principle of a limited one-way street system serving the downtown area of Santa Monica and urges the City ~o study and implement such a system considering the establishment of an east-west couplet *uch as Arizona and Broadway now, and a north-south couplet in the downtown area, such as Fifth & Sixth Streets, in the near future. SIGNED: .;;-P~"R~~'IJf- Isa Feinstein, President SIGNED: ..~_~~__.c Sam Porter, Exec. V.~ Secy. ADOPTED this 10th day of June, 1975, by the Board of Directors of the Santa Monica Chamber of Commerce RECOl-:XENDED BY: Transportation Committee Dave Lederer, Chairman ., . . . . . f REPORT The Advisability of P~viding a Limited One-way Street System for Santa Monica -- . . Prepared by the Transportation Committee, Santa Honiea Chamber of Corr:merce Dave Lederer, Chairman . April, 1975 -, . . -- - - . . e The A~v~sability of ~!o~id~nga Li~ite~ ~e~way Street Sys~em for T -- f ,~anta ~l<.?nica I. ~ackground Santa Monica has experienced continued growth in population and retail sales over the last several years and this trend is expected to continue. The construction of new large office buildings and future anticipated changes, such as the Rouse Project and new freeway off ramps, are likely to accelerate the business actLvity and traffic in Santa Monica Greater concern with traffic flow and safety is a natural consequence of the increased activity in the co~~unity. Santa Monica residents enjoy, and overwhelmingly wish to retain, the relaxed, friendly,pleasant "home town" character ot the city. Plans to provide safe easy driving, parking and transportation must be made and implemented now if increased commer- cial activity is to be acceptable to residents. Greater traffic effi- ciency will also help Santa Monica business compete more succes~fully with neighboring shopping areas, such as Century City and Fox H11ls. II. Purpose a~d Lim~tati~~s of This Study This study is intended to deal with policy questions to enable the Chamber of Commerce to make a reasonable recommendation to the Santa Monica City Council regarding a limited one-way street system. It is not intended to discuss or recommend specific traffic details. It will consider the broad questions of traffic flow, safety and economic factors as experienced in other communities and applicable to the situation in Santa Monica. III. Santa Monica Trends A. Population Santa Monica population information is available from the national census for 1970 and is estimated by the Chamber of Commerce there- after: Year ~opulatiorl:. % Increas~ 1970 8B,841 1971 89,196 + .4% 1972 89,800 + 7',>1 . ,/0 1973 92,435 + 2.9% 1974 92,978 + .6% It is our opinion that modest growth will continue. ., . . , . e - 2 - B. Safety and Traffic Flow .. Offic1al police department accident data for Santa Monica follows: Year hccidents % Increase 1970 2, 726 1971 2,818 + 3.4% 1972 2,842 -to .9% 1973 2,863 + .7% 1974 3,143 + 9.8% Ko explanation has been found for the unusual increase in accidents in 1974, but it does glve concern and incentive to improve the safety of Santa Monica streets. Consistent detailed traffic flow information over time is not available for al"lalys is. That data which is recorded indicates a contlnued high level of activity in the downtown area. According to counts made in the 1973-1975 period, it appears that trafflc runs about 28.000 cars per 24-hours in the central downtown area and up to over 38,000 cars per 24-hours around L1ncoln Boulevard and Broadway. c. Economic Matters . , A summar~ of retail sales in Santa Mon1ca indicates a pattern of continued growth ~1nce 1971: Retail 3ales Year (in ODD's) % Increase 1971 $272,'632 1972 293.935 + 7.8% 1973 320..335 + 9.8% 1974 365,000* +13.9%* *Estimated It is our opinion that the growth trend will continue and probably accelerate infue coming years. ~other comrn~nity economic lndicator is the assessed value of property 10 Santa Monlca as reported by the L.A. County Assessor1s Office: ., - . . . . .' e - 3 - . Assessed Value Land & Improvements Year (~n OOO's) % Increase ~ 1970 $ 283,593 1971 290,346 + 2% 1972 299,003 T 3% 1973 311,666 + 4% 1974 341,005 + 9% He believe property values in the Santa Monica area will cont~nue to rise based on the City's favorable living and working conditions and outstanding locatJ.on. IV. The Experience of Other Co~un~!~es ~ vast number of ubeforelJ and Uafter" studies of one-way street systems have been made by governQental units, profess~onal and academic researchers. Only a few have been selected as 11lustrative here, but the attached bibliography lists additional material available. A. ~raffic Flow and Sa~~ty Quoting from the Highway Users Federation for Safety and Mob11ity Conference paper dated 1971: -- DEvery major s~udy that has been completed... (since early 1900's) ... has shown that one-way streets improve transportation efficiency. Several early studies...attr~buted large accident reductions to one-way streets. In addition to the safety improvement, most studies found there were substantial improve- ments in travel time, street capacity and vehicle delay.1t A few meaningful examples follow: - L.os .h.nqeles. -- J~ 1973 study by the Department of Traffic, City of Los Angeles, on Spring and Main Streets shows the one-way couplet resulted in more vehicles with less delay per vehicle and less accidents. The traffic volume increased 18-20% in peak hours, the average speed increased 25% during the afternoon peak hour period. while average traffic time was reduced 20% accidents decreased by 23% to 25%. The record for other L.A. surface streets showed a 10.8% accident increase for the same period. Modesto -- A late 1950's study on certain streets that were made one-way indicates by the end of the first year of operation, although total accidents reduced 356 to 322, the number of lnjury accidents increase 60%. hfter an extensive campaign of informing .. . . . . , e - 4 - . Motorlsts through newspapers, police at site, driver's license bureau, etc. . all accidents were reduced. By the second year, traffic mileage ....as up 24% I tr a ve 1 time down 50%, and accidents down 28% from the two- ~ay system the year before conversion. . HaQllton, Ontario -- The pattern of slight accident increase during the flrst year of operation was noted In H~~ilton due to dr~ver unfamil~arity. Greatest problem was driver turning left from center lane of one-way street. Three years later there was a 17% accident reduction on one-way streets (particularly pedestrlan accidents) compared to substantial increase on other two-way city streets. This 1mprovement was attributed to platooning of veh1cles and creat10n of safety gaps in traffic for pedestrians. Twelve s~aller Oregon clties -- hn Oregon Hlghway Department study in 1959 shows a substantial lncrease in traff1c flow with an average 27% decrease in accidents, especially rear-end, Mid-intersection, such as sideswipe ~~etings, turning, parking, pedestrian and back~ng. These results were confirmed in studies in New York and Mlch~gan. Night safety by eliminating oncoming headllghts was vastly inproved. 3an Franc~sco -- A Department of Public Norks study indicates a substantial lncrease 10 average speed and traffic volume per lane with an over 50% decrease in accident rate. The study ~so quotes similar data reported from Sa.frarnento, Portland and Denver. B. Econo~ic Eff~~ts The reported results again favor one-way streets. A study conducted 1n Denver, Colorado ~n 1964 summarizes much of the information reported to that date. Business on one-way 16th Street in Sacramento 1ncreased nearly 50% more than business on other streets in the city. h Chamber of Commerce study is quoted as saying that 103 out of 134 cities were 1n favor of one-way operatlon after a fa~r trial. The Fresno Merchants ASSOc1ation 1nd1cates 90% felt the one-way streets were not harmful to business and 85% would recowmend them. ~ study of R1chmond, Virginia compared retail sales and property values of exactly comparable one-way and two-way streets. Property values on one-way rose 46.5%, while those on two-way rose only 33.6%. Retail gains during the first year on one-way rose 10% wh11e the city as a whole rose only 3%. Other cities. including Roseburg, Oregon; Buffalo, New York; Sacramento, California; and two groups. one of 50 cities and one of 134 communities, indicated favorable econom1C results from one-way streets. . ., . - - - . - -- ~-- - - . . . e . . - 5 - ,. 7ne D~rector of Traffic Engineering of Denver stated, IlBusinessmen often reslst one-way operation because they fear the effect of having only one- half of the traffic passing their doors. Yet, it is easy to demonstrate that, if motorists are properly directed through public and private announcements, and when motorists have developed experience with a ene-way ;:;.rterlal system, businessRen will receive the benefits of better and safer =,ob~lity and access developed by a pair of one-way streets." A conference held in Washington, D.C. , in 1967 pointed out "...certainly Saine types of businesses may be harmed although probably only temporarily. ~1ese are primarily drive-in facilities which previously catered only to the direction of traffic that was eliminated." A study made in Helena, Montana in 1961 shows: o the assessed valuation of abutting propertles to the one-way couplet increased over eight times compared with an increase of approximately four times for non-abutting propert~es in the same area during the sarne period. o only 8 of 58 businessmen who were interviewed indlcated they preferred two-way over one-way operation in the couplet area. o traffic lncreased 87% versus 39% in the nearby area over the same period~ o the one-way couplet was favored by most residents in the area. In an Olympia Washington study in 1952, the flndlngs indicated substantial ~nprov~~ent in safety and traffic flow. IIBeforell and ltafterU flgures shewed that over a three year period sales on one-way streets increased by 8% while those on two-way streets decreased by 13% under comparable conditions. ~fuile th& retalI sales picture is complex, the study positlvely states, tlOne-way streets were certainly not detrimental to general business trends in the Ci ty of OlYITlpia. u L~e reports go on to say: 111. Tne economic development of a business dlstrlct is dependent upon the commodities and services available, the manner in which they are offered, and the1r accessibility-to the customer. One-way streets were installed for the purpose of increasing- - the accessibility to the central business district, and to add to the safety and convenience of those motorists traveling to and through the-downtown area. at 2. The economic structure of the modern Amerlcan City is indlspensably built around the transportat1on of persons and commodities by motor vehicles. Any 1mprovernent in street and highway trafflc conditions will, in the long run, benefit all persons and interests dependent upon the passenger car, truck or bus for buslness, social or recreational activities." -, . . ~ - I . . . . ~ - 6 - v. Conclusions ~e various reports from other C1ties that stud~ed one-way operation clearly ~ndicate that such syste~s are a slgn~ficant method of improving t~e safety and efficiency of the urban street system. The disadvantages of o~e-way operation are minor Ln comparison to the important benefits ~hlCh can be achieved. Generally, cnu could expect ~mproved capacity, smoother trafflC flow, eli~~natlon of left-turn problems, fewer pedestrian/vehicle conflicts and signlficantly less accidents. ?nere is nothlng apparent in the situation 1n Santa Monica which would ~end to negate these anticipated results. VI. Recommendations 7he Transportatlon Committee of the Santa Monica Chamber of Commerce recommends that the Chamber approve a resolution to the banta Monica Clty Council endorsing the princlple of limlted one-way streets for Santa Monlca and implementation of such a system now, based on study and review of the details of city traffic. ~ . . . . . ~ . '. . T . ~ - 7 - VII. Bibl!ography and Reference :II- 1:ayer, Peter h. Taylor, s. s. ?:=-aft,lc Control & R~adwc!y ,,~lem.ent~. --: L.A. Clty Traffic Eng~neer T;""1t'nr Relatlonshl'p to Hi9hway Safety - u~~fore" and uA.f1;:,~rn Study_of th,e Revlsed 1971 Converslon of Maln Street and Spi- ing . s,t,reet _to" one,-.~a:y " Trafflc Engineering, State of ~ash~ngton Cperation ;~ Study of ye!ticle ._Tra~,fic _cmd, Busl.ness October 1973 Trends uBefore I' and Uhfter" . One-way, St~ee~s in Olymplar Was~in9ton Marconi, William January 1952 San Francisco Traffic Engineer One-~ayAr~erial Systems Rybak-off, George AprJ.l 1968 Carroll College Economic Analysis of The One-W~ Carmody, Dougl as J. Couplet, Helena, Montana Mo4esto's On~-~ay Streets (~s~. 1967 --and 2nd Year Reports) ThoILa$ Richard C. Street Engineerlng ~~e Eff~ct of Cn~-way Tr~~fic .operation Dece~ber 1958 and March 1960 on Retail Busine~s . .. ~rafflc Englneeri~- Unknown Author July 1968 Supplementary One-:-way Street: Report Kennedy, John, and Hill, Denn~s Fresno Econo~i~ and Environmental Effects of 1957 .. .~e-Way Streets ~n ~.esi~en!-;::i;a1 Areas Tne,hpp~aisal Journal Data Search Printout Cctober 1971 Battelle Institute's' Bruce, John A. Transportation Information Service Cne-~iay. .Naj<;>r ~rter:lal, ,Streets Apr~l 1975 Conference-National Academy of SClences, Uashington, D.C. 1967 Data Search Printout Cl?e Hay StreE;~s Department- of Publ ic "lorks I Fresno SDC's Internat10nal Search Su~plenental Report on.Gne-way St.reets Service January 1957 . Reference List Univers1ty of California, r.erkeley,. Institute of Transportation and Traffic Engineering Library April 1975 .. . - - ~--- - . . . .. ..... :>:D r.----:-----.~- I I '~.' 1, 1.' 'I ~ I 'I i . I, 'I' I " I I :: r;a I, :, i , ' ,\ I ] J! I I~, I ,I . ;; () I, -- -. - 1 -~.~ ~_J '_ __ _--' 1 ____ ~____==J ,'--_= 'L------.-l' ~~- ~- ::; .- Vv,'s! , 'e g!yd ~ ~ i;U I ~ :- -- -- ~---- N i-- 1 :---1- 1 ~-:~: p'li -- - -, ~I_---C; r=-Ol'mr --- - - ----I ~ ~ ? \~; ,'; i i : to. Ii! 1~,g> i 11 r ~,I" ! 10i ;i j'~l ')~) ....'. IO'i lb, Iii , 51l D t ~'~ ~.1,.. 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I It. _ l - -c.,...'1 -:..~ jj--J ,.1 ".i.JJ",,!! ~ - 1 r--~ ...---- <j.! . ,~--J ,TITIT'n !"' ---<..~ - / < p t - ----< 0---" - I- ~s::S-;+~;- l'~:7 ~-; j : t ~== ~;.: 1.:= ~~' I ~I <.. I _ -6' .- _, ............. L---, : 11,1 j I'll rt I it L r' ~ "= I I - I, ,----.-!Ino,_ -, - - / . -, < . / b BARTON~ASCHMAN ASSOCIATES, ,NC. 180 So...rth L..aI<E A,enx Sute 260 P-as.:o:r,} Caliana 91101 : 213: 449 Ir Februa~y 27, 1978 Honorable Mayor Donna O. Swink and Members of the City Councll City of Santa Monica 1685 Main Street Santa Monica~ Callfornia 90401 SubJ ect : Llmlted One-Way Street System in Downtown Santa Monica Madam Mayor and Council Members: We understand that the Santa Monica City Council is about to formally conslder the implementation of one-way st~eets ln Downtown Santa Monica. The purpose of this letter is to again explain our findings on the need for the one-way street system and to offer our asslstance, if necessary~ in respond1ng to any questions or concerns that may be raised by the City Counei 1 . Over the past five (5) years, Barton-Aschman Associates has served The Rouse Company as traffic and parking consultants for Santa Monica Place. At present~ we are under contract solely with Frank O. Gehry and Associates (project architects) to prepare the functional designs of the two parking garages serving Santa Monica Place. Further~ we have had the prlvilege of serving the City of Santa Monica in the Central Area Circulation Feasibility Analysis which will soon be presented to fhe Planning Commission and the City Council. Our perspective therefore is not one of a traffic engineer who only wants to move cars to/from Santa Monica Place; rather, our CBD experience allows us to look at the function of lnd1vidual streets as each relates to all the land uses and transportation modes 1n the downtown area. ~lstory of Proposals In early 1973, the City Traffic Engineer completed an analysis of future capacity requirements for downtown streets. He concluded that the most effectlve way to accommodate future CBD trafflc was the lmplementation of two one-way couplets -- Broadway/Arlzona and Fifth/Sixth Streets. In the 1973 report~ boundaries for these one-way couplets were suggested that would take advantage of planned freeway interchange improvements. When BAA began working on Santa Monica Place~ we reviewed and analyzed the City Trafflc Englneer's report and we strongly concurred with his one-way couplet findings. In fact, all of our plannlng and design work has been based on the one-way system. - ~--- ~- 4 4 -- . Honorab 1 e Mayor Donna. Swi n k . - a and Members of the City Council February 27, 1978 Page Three The parking garage at Broadway/Fourth would have to be completely redesigned if Broadway remained a two-way operation. Most of the traffic will approach this garage from the east, and if left-turning traffic must face opposing east- bound trafflc (which would be eliminated under the one-way plan), entering traffic on westbound Broadway will "back Upll through the Fourth Street inter- section. Under two-way operation, the garage entrance on Fourth Street would have to be emphasized by allowing left turns into the garage from northbound Fourth Street. Even with this change, however, it is doubtful that satlsfactory garage and street traffic operation could be attained because of the location of garage access points. (NOTE: The Colorado/Second garage has been deslgned to be served by two two-way streets, and Council may wonder why this garage will function satisfactorily but the Broadway garage would not under the two-way operation. The essential difference is that the enterin~ traffic from Colorado makes a right turn into the structure while at Broadway ,t would be a left turn inbound. If opposing eastbound traffic faces the inbound (westbound) Broadway left turns, serious II backups II will occur. Left turns out of the Colorado garage will be handled by dual turn lanes within the garage under traffic signal control. In essence, the Broadway garage could work on a two- way system if the maJority of the traffic were approaching from the west instead of the east.) SUlTITIary Barton-Aschman Associates strongly supports and endorses the proposed one- way operation on Broadway/Arizona and Fifth/Sixth Streets. We believe that these changes will serve traffic to/from the existing downtown businesses and that it will also accommodate the increases in traffic associated with the completion of Santa Monica Place. If there are any questions on the contents of this letter or if there is any other informatlon that might be of help to the Council in your deliberatlons, please do not hesitate to ask. S; ncere ly , BARTON-ASCHMAN ASSOCIATES, INC. --~u r-' ~~f)- '-- . ~-~---:--. Thomas E. Mitchell se"J AssocIate .'~7f~ Patrick A. Gibson Vice President TEM:PAG:ITIll ./"" cc: Mr. James Wllliams~ Mr. Frank Gehry b BARTON-ASCHMAN ASSOCIATES,INC ;'::.::tr'''IC;' I.n:.,s 'i.,:j~h;;-.;;'~'1 :x:: i/n,ed;::-cls S, P"aLl M''":r,e3{)I2: Sa' J:JS2 CaJi'ocn.a ~V;:YK) Crtar.o