Allyn D. Rifkin, PE Rifkin Transportation Planning Group

Transcription

1 Allyn D. Rfkn, PE Rfkn Transportaton Plannng Group 4455 Los Fclz Boulevard, Sute 1403 Los Angeles, CA (323) [t] (323) [cj May 1,2017 Rob Glushon Luna & Glushon Ventura Blvd, Sute 950 Encno, CA Va emal: Date: Submtted n MM Counc! Fle No. tem No. 1 7; t atyv3 YYW Y\ fvvl Commttee Traffc and Crculaton ssues - Proposed Resdental Addton to 10390/10392 Ashton Ave, Los Angeles. CA ENV ND TT72087-C\, mr drb-spp-sppa:dk drb-spp-sppa-la Dear Mr. Glushon: n response to your request, have revewed the proposed expanson of parkng n connecton to an expanson of the exstng development at the ste. Attachment 1 s a summary of my qualfcatons to make ths re vew. CONCLUSON The Project wll substantally ncrease transportaton/traffc hazards n the adjacent alley due to the proposed tandem parkng spaces whch must back onto the alley and the resultant ncremental effects when consdered wth the crculaton and parkng patterns of the surroundng propertes whch also use the alley for access. Ths alley s substandard accordng to the Cty of Los Angeles requrements wth two blnd ntersectons that result n safety and congeston problems for the project ste. Further revew/study s needed to adequately evaluate such transportaton/traffc mpact and, f feasble, mtgate those mpacts to a level of nsgnfcance. DSCUSSON My revew s based upon personal feld revew, observatons and measurements of exstng roadway geometry. Attachment 2 s a map showng the project locaton and relaton to the adjacent alley. t s mportant to note that other resdents along the alley as well as the development on the subject ste favor access to Ashton Avenue whch has a traffc sgnal to/from the heavly congested Beverly Glen. A feld Page 1 of 12

2 TRAFFC MPACTS /10392 W. ASHTON AVE MAY 1, 2017 count of the number of resdental projects that must use ths alley for ts parkng resulted n 59 garage spaces (ncludng the exstng project on the ste). To the best of my knowledge, none of the exstng garages along the alley are confgured for tandem parkng. The total estmated trp generaton for 59 resdental dwellng unts s estmated as follows: TRTP GENERATON OF CARS USNG THE ALLEY (total of 59 resdental unts) DALY Trp rate 6.65 Trps/unt Total 392 Trps/day nbound (percent) 196 Trps/dav (50%) _ AM Peak 0.55 Trps/unt 32 Trps/hour 9 Trps/hour (29%) PM Peak 0.67 Trps/unt 40 Trps/hour 25 Trps/hour (61%) Outbound (percent) 196 Trps/day (50%) 23 Trps/hour (71%) 15 Trps/hour (39%) Source: TE Trp Generaton Handbook 9h Edton (LU Category Apartment) Durng the PM Peak there could easly he 1.5 seconds n between cars traversng the alley. Certanly not enough tme for one tenant to remove a car n a tandem parkng space, park t and then remove the second car to ext. All parkng for the project at ths ste s proposed to take access from the alley, rght at the man access pont (at Ashton Avenue) for the majorty of the exstng adjacent resdental users. Of partcular concern s that the new project wll nclude tandem parkng spaces, necesstatng addtonal conflctng moves to the 392 cars per day estmated to use ths alley, Attachment 3 s an exhbt of the Cty of Los Angeles standard requrements for alleys. Accordng to my feld measurements, the alley wdth vares between 15 feet and 17 feet wde because of utlty pole placements and garbage can placements throughout the alley. There are two blnd alley ntersectons due to the property walls at ntersectons wthn the alley (see Attachment 2). The alley s substandard and changes to ts use should be revewed carefully. Attachment 4 s an abbrevated exhbt showng photos of observed congeston n the alley. Backng cars out of the project ste under exstng condtons s dffcult. Allowng a tandem parkng confguraton, frequently requrng one drver to back out and park one car n the alley so that the second car could ext would certanly exacerbate the stuaton. Attachment 5 s an llustraton of how the applcant proposes to construct tandem parkng onto the ste. As one can see, the tandem parkng would requre for ext, that the tenant back Car 2 nto the alley n order to get Car 1 out of the parkng space, then park Car 1 to put Car 2 back nto the parkng space. The reverse operaton s just as convoluted for comng back to the unt. Durng peak perods of traffc, both mornng and afternoon, tenants would sgnfcantly conflct wth exstng congeston n the alley. Tandem parkng should not be allowed on ths alley. RTPG Allyn D, Rfkn

3 TRAFFC MPACTS /10392 W. ASHTON AVE MAY 1,2017 Thank you for the opportunty lo comment on the proposed crculaton ssue. Please contact me f there s need for further analyss. Allyn D. Rtfl<TrCP.E., State of Calforna TR #1112 RPG -3 - Allyn ). Rfkn

4 TRAFFC MPACTS /10392 W. ASHTON AVE MAY 1, 2017 ATTACHMENT 1 Allyn Rfkn, P.E. Experence and Qualfcatons Mr. R fkn has over 30 years experence n the feld of transportaton engneerng and plannng. ncluded n that experence are assgnments n both the prvate and publc sectors, rangng from consultant for developers to research for the Automoble Club of Southern Calforna. Untl recently, he was the Chef of the Los Angeles Department of Transportaton s Bureau of Plannng and Land Use Development, responsble for managng a staff of 38 professonals and servng as the key department lason between the development communty and Cty Councl on traffc mtgaton and transportaton plannng ssues. He supervsed the completon of numerous project ERs for the Cty of Los Angeles. Hs latest projects focused on transt orented development along varous ral algnments n the Los Angeles area. As a prvate consultant, Mr. Rfkn has worked closely wth resdental neghborhood assocatons and developers to negotate consensus on traffc mtgaton measures n assocaton wth proposed development projects. Other consultant efforls of nterest nclude assstance to the Eagle Rock neghborhood n the formaton of the Colorado Boulevard Plot Communty Parkng program and to County Supervsor Yaroslavsky n the ntal proposal to convert Olympc and Pco Boulevards nto a one-way par. Professonally, Allyn s actve n the Urban Land nsttute (UL) and the nsttute of Transportaton Engneers (TE), and has served as the presdent of the TE S largest Chapter of TE, the Southern Calforna Chapter, wth over 1,100 members. n addton to servng on the TE Natonal Transt and Transportaton Plannng commttees, he has been nstrumental on natonal steerng commttees for the TE Trp Generaton Commttee and the Urban Goods Movement Commttee. He has lectured extensvely on the topcs of traffc mpact mtgaton and on neghborhood traffc controls. Hs college educaton began wth a B.S. n Systems Engneerng at UCLA and led to an M.S. n Transportaton Engneerng at Northwestern Unversty. Rfkn s natonally recognzed for hs expertse n ravel demand forecastng. Hs more recent work has nvolved traffc plans to releve congeston n varous hot spots of development n Southern Calforna ncludng the South Coast Plaza area of Orange County, Downtown Los Angeles, Westwood, the LAX Transportaton Corrdor (the ntal area n Los Angeles to adopt a traffc mpact mtgaton fee), and Warner Center. He was nvolved n the creaton of fve transportaton trust funds wth current balances exceedng $23 mllon for transportaton mprovements. n hs role as medator of development traffc mpact Mr. Rfkn launched a neghborhood traffc safety program currently exceedng $1,5 mllon n neghborhood traffc controls and negotated pedestran safety mtgatons from de Los Angeles Unfed School Dstrct. RTPG -4- Allyn D Rfkn

5 TRAFFC MPACTS /10392 W. ASHTON AVE MAY 1, 2017 nternatonal towers O W sh>re Cortdo'' Real Estate O ATTACHMENT 2 3 o o ' h lll Become French m LA O o BLND NTERSECTON Go gle RTPG -5 - Allyn D. Rfkn

6 TRAFFC MPACTS /10392 W. ASHTON AVE MAY 1, 2017 ATTACHMENT 3 Secton 12.21ADrveway Locaton. Access through substandard wdth alloys Q- Under what condtons are alleys of substand rd wdth < yo > not deemed to p adequate automoble access' 4- Alleys less than 15' not openng dectly to a street are generally not consdered accessble the Fgute No 33 below shows a typcal cty block n an older subdvson wth 15' wde alleys 1 Street Olher factors also need to be consdered such as cut corners at alley ntersectons ntensty of parkng use number of compact stalls etc A combnaton of cut comers, low use ntensty and a hgh number of compact stalls served, would be favorably consdered A fnal decson should be made wth the concunence of the supervso Street N> & C NS l. than f T NS NS n; _ N (7)? LO M N cr. S tr e e t V N Zonng manual ) Street Straght access to alley O.K 1 Porton of alley not accessble Fgure 33 L age 162 of LA Dept of Buldng & Safety Zonng Code Manual and Commentary ttps://www. bdhs nrg/dqcs/default-squrce/publcatons/lnjomatnn Ouj^jy '! RTPG -6- Allvn D. Rfkn

7 TRAFFC MPACTS /10392 W. ASHTON AVE MAY 1, 2017 ATTACHMENT 4 Photos of Exstng Alley Congeston % r LJW wm a. Exstng garage layout - 4 spaces, 3 doors Note that the left garage s sde-by sde parkng. RTPG -7 - Allyn D. Rfkn

8 Rob Glushon TRAFFC MPACTS /10392 W. ASHTON AVE '- MAY 1, 2017 t Pet, 1J Hf t. H 'f^v w- T; 3? p V1 o. A. UETEC 1 Br ft- WFAd nvt - J f? 'A >-, 1 /vv b. nbound congeston at the alley on Ashton Avenue - PM peak hour RTPG 8 Allyn D. Rfkn

9 TRAFFC MPACTS /10392 W. ASHTON AVE MAY 1, 2017 V jj % \. j V fcn. H'J m.. «J- - rj. s v r s#. J u r -A»' p _ c. Bottleneck caused by blnd ntersecton of the alley RTPG -9- Allyn D. Rfkn

10 TRAFFC MPACTS /10392 W. ASHTON AVE MAY 1, 2017 j El m z. Jk J r -4 ^. j ( -V ' /. V f ) L/V'. :. V l / d. Vew of the blnd alley ntersecton RTPG 10- Allyn D. Rfkn

11 Rob Glushon TRAFFC MPACTS /10392 W. ASHTON AVE MAY 1, NT ' l < P S' 1 'l. f Q r 1 ft V «afv.v. V. >3 PS? - rj r e. Car attemptng to back out of exstng garage durng congeston. RTPG Allyn D. Rfkn

12 ! Rob Glushon TRAFFC MPACTS /10392 W. ASHTON AVE MAY 1,2017 ATTACHMENT 5 PROPOSED TANDEM PARKNG ca r REV 5ED FLAN SDEWALK EXSTNG,TDWT NBl3t1T-= "5TT 1.1 jffrtkt : car t - X Tp r vh ( c - \ F -. \ S «'.nr.rtr» ---- J y -V-Tr 2ST jkv;; m f &? k. Htt / j :+4J. - # m V r r... _ + KS -! j : mm. f h M W V t :. 5 te 0 T -'JJ- S R ' T f. ~r A 5 d a } J! Na-TDLn >3 J -onjt. h - t : - m J 1 gl -01 C r tl.o b WC S2KSE w. l r.. ' ',j - 1j m gr-t + ' K 3 0 ' wm b 2 3- ~ t UF H T Jk Jt V : _1"a: 1 O-l P V P V A W.J M 1 J U C j t. m \ TME SJL r to # r - H 7 7 \ ", Kr - "ft 'l PE &r? O ",r FYSTwr. wood v w y rm s awn v y w s T " ^ afj T H -- :X',; 3F n V. 22 J l J C : ' f c E t o o o n p ;j m.l N $f " T 1 RTPG Allyn D, Rfkn