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HomeMy WebLinkAboutM-89-00891 ~~ ~Y }J CITY OF ~AIAMI. FLORIDA. INTEFI-AFFICE MGM©d~ANDUM ~.. ~ ~ ° Honorable Mayor and Members of DATE the City Commission SUB.IECT ~ROl.1 . REFERE~JGES ='~F Traffic Control Measures for S.W. 28 Street Cesar H. OdiO =NCLOSUNES Department Responses, Sketc~,es City Manager of Recotmtendations As directed by the City Commission, the Department of Public Works has prepared several proposals for traffic control measures on S.W. 28 Street between S.W. 22 and 27 Avenues. It is recommended that one of these plans be selected for implementation by the Department. BACKGROI~ND At the February 23, 19$9 City Commission meeting, the restriction of vehicular access to S.W. 2£3 Street and S.W. 27 Lane between _, S.W. 22 and 27 Avenues was denied by the City Commission. This y_ action was is response to emergency access requirements of the Police Department and Fire, Rescue and Inspection Services -=_ Department and recommendations of Metropolitan Dade County Public _ Works Department which were in conflict with the vehicular access restriction of S.W. 28 Street. However, the City Commission did acknowledge property owners' concerns regarding the excessive traffic volumes and vehicular speeds along S.W. 2$ Street. In response to these concerns, the Department of Public Works has prepared three (3) traffic control alternatives which attempt to reduce vehicular. speeds, discourage - - peak hour traffic use and maintain accessibility to both S.W. 22 and 27 Avenues. Any attempt to "divert" traffic from S.W. 28 Street would only result in additional traffic congestion on S.W. 27 Lane and S.W. 27 Terrace. A large group of property owners residing on those two streets have submitted a petition opposing any attempt to close S.W. 2$ Street or divert any traffic on to their streets. The use of diagonal diverters as a traffic control device in the general area is not recommended. ~~~ ,~..~ d ~; ~. i~ V. ~ ~/ ~ 1 ~~~ l ~i~~~l"' 1 ~ m..l 1 i1 ~ 1 i ~i ~w Q '"l ~ ~~ t~~i' ~ tr-+~+ ' ~ I ...) i~ .L...r !'f. J N~ ~~ ~ < ~, 1 1 ~ ~ ~~~_ "" ~_~ n"----.'."' C`~' N - , ~ ~~. \- i y ~ ~ /~ ~~ . 4 Z 90-Wf~l ~ ~ 4Z 4 ~ ' ~-~ - ~O - ~ ~ ~~ - - ~ ~~ 1 ~ ~ _ ' !! j- } f 1 W ' + ~ - '"r+~. 1 ~ `~.r./ --,~} ~ ~raJ ~ ... ' - .,, .... - / A ~ti ~ r - r ~_ - ~- .., ~ ~jJ ~ ~ li- ~ - wu`'a~~ ~ t •. ei W ~ I 4 ~~q~t1V - I QQ O f~.11.)Q J - I I ~ ~ 4~~ Q ! tn~ I -~ ~~ - Q~ 0 ~~~ Q. ;. }~ 1'C 1~.~. cP' `~ o~ ~~ w 0 f~ v ! N Q 0 Q ~~ ~~ ~_ nuu ~--- e~'~~r a 1~ .: m t _~~, -- G i i i _~ -~ ~,, ' ~ ~ -~ _j ~ ~ ~ ~~~. ~ _- _ ~ O - 3 ( W ~ ~ ~ ' ~ ~ I ~~~ ( I ~~ ' I -~ ~ ' ~ t~`/ ~ O • ~ ' - _- ; ~ _ ~" \` - w \ ~ ._ .~ ____ ilk ~ _ ~ , ~~--,. 3 a W?~ ~~~ :: ~_} .:~ ,- n~+r ~IA~~I~JAL T~AFF1~ t~it0~'~'ll~~ ~'~~QMM~tiI D~C~ ~Q~ CAS ~ o~ s.~ ~~ ~T~'~~r r ~~, °' ~# '~ _1 - _= _~ ~ -~ Ta concerned parties: ~ _ - - - --~'i RE: i;pdate to data gathered on tra _ ffic speeds and volume. ~I A traffic speed and volume study on SW 28th Street between 22nd - and 27th Avenues was conducted on 21 March 89. Another study was conducted on 2~ January 90 to see if any significant changes in ' ~ r~ 1 traffic exist. A summary follows: -~ Average speed un SW 28th Street still is in the area of 36mph _` with approximately 85916 of vehicles exceeding the posted speed ' - ~ ~ limit. - ~~ _ _ u The study showed a volume of 115 cars in a '~ hour period which _ comes out to about 230 cars an hou r or about one car every 16 _ seconds. This figure exceeds thQ C ity's study of G6 cars per hour - _ and the March 21 study of 126 cars per hour. Submitted into the public record in connection ~i~ ai~.~. item,~~ on ~J~sJ_~ , = 1Vlcltt~ I3i~~cli . City Clerk Gerald Lee Stankevich so-~~ __-__ G _.. - -. ,+w+: y„r. - yaw oFFlc~s suir~ ni4 7Tf ®RICHEL~L AVENUE MIAM1, FLOl31DA 3311 T EI.EOHONE 374.2280 Jaaua~ry 23, 1990 Honorable Xavier Suarez Mayor, City of Miami Miami City Hall Miami, Florida Re: Petition of S.W. 28 Street Residents Dear Mayor Suarez: The petition of the residents of S.W. 28th Street, pho have formed the Overbrook Raad Neighborhood Association, is before the Commission for the ninth time, Despite our repeated attempts to pursuade the Commission that reasonable precautions in the form of a barricade or diverter is needed to protect the safety and property of the residents of this street, no action has been taken. The Citp has authorized permanent barricades on the five streets to the imme- diate south ~rhile leaving S.W. 28th Street open. The heavy traffic on S.W. 28th Street has increased. The Commissioners and Aepartment of Public Works have repeatedly been put on notice, and are fully ax-are, of the extremely hazardous conditions oa S.W. ZSth Street; consequently, under the circumstances, they have a duty to take reasonable precautions to protect the residents of this area. There is no ~ustifi~:ation for the continued failure of the Department of Public Works and the Commission to implement practical traffic restrictions. A barricade, similar is design to those on the streets to the south, to be located on S.W. 28th street at Jefferson, is the only meaningful solution to this problem. The petition should be granted. Respectfully yours, CARL M.LAMBBRT CML:c ~ ~ - ~ubr.1itted into the public reca~d in connection with item, ` on _ P ~/!/ Matty. ~iirui ~®_~~ City C~.erk Y'~l,I.1iRYT~ L`QN3UA,TI1~t~ a~B~~IC~Si3 25{!S Sid 2ATH !~'1~EET l"II~I, ~I, 33133 X305) 85b-1Q09 23 2~arch 89 Miaa:i City Commission 3500 Pan 7~ierican Drive Miami, F1 33133 Dear Commisaionerss This document is in response SW 28th Street. I took it ugon to provide some information to traffic flow and traffic speed Submitted into the public xecord in connection with item~_on ~ ~~t~ , Mdtty Hirai City Clerk to the growing traffic problems of my self as a concerned neighbor the City Commission to regards to on the above mentioned street. Note: I teach statistics in industry and consult many orgarii~ations on statistical design. T can assure you that the data I gathered was done so in a professional manner. You should know that although this study provides some germane points, it is certainly far from being comprehensive. However, I believe this study does provide tremendous insight into the potential traffic problems that currently exist. The following observations ~rere made by Gerald Stankevich on 21 March 89 approximately in front of 2505 SW 28th Street. See attached map). The observations represent the average speed of the vehicles over a 100 foot length of road. The vehicles were timed and the seconds per 200 feet were converted to miles per hour: 8:20 AM to 8:45 AM East bound: m m 31.1 39.6 27.9 34.6 m 38.5 32.8 27.1 4b.1 39.9 m 39.6 32.0 32.0 42.1 47.3 46.1 27.9 46.1 m m 41.6 m 40.6 47.7 38.3 m m 35.5 33.1 m 36.1 29.9 m m m 33.9c 32.9 m m 27.3 m 24.4c 33.3 31.0 m 30.6 West bound: me 19.3c 47.3 m me m 31.3 30.7 21.3c m me 37.9 m 43.4 me me me 30.3 me 20.1c m 16.9c 24.9 m 21.1c m 44.4 m m ~~~ ~•A'AL1dRX~°AIR C®~1S17LTII-TG SBRtiICkS 2505 swt 2sTe sTRBBT rsaaxi, ~L 33133 -_ (305) 856-1009 23 March 89 Miami City Commission 3500 Pan American Drive Miami, F'1 33133 Dear Commissioners: Submitted into the public record i~ connection with ite~a~ ~' can ~~~ . batty Hirai City Clerk This document is in response to the growing traffic problems of SW 28th Street. I taoY. it upon my self as a concerned neighbor to provide some information to the City Commission in regards to traffic flow and traffic speed on the above mentioned street. Note: I teach statistics in industry and consult many organizations on statistical design. I can assure you that the data I gathered was done so in a professional manner. You should know that although this study provides some germane points, it is certainly far from being comprehensive. However, I believe this study does provide tremendous insight into the potential traffic problems that currently exist. The fallowing observations were made b,y Gerald Stankevich on 21 March 89 approximately in front of 2505 SW 28th Street. ESee attached map). The observations represent the average speed of the vehicles over a 100 foot length of road. The vehicles were timed and the seconds per 100 feet were converted to miles per hour: 8s20 AM to 8:45 AM_ East bound: m m 31.1 39.6 27.9 34.6 m 38.5 32.8 27.1 46.1 39.9 m 39.6 32.0 32.0 42.1 47.3 46.1 27.9 46.1 m m 41.6 m 40.6 47.7 38.3 m m 35.5 33.1 m 36.1 29.9 m m m 33.9c 32.9 m m 27.3 m 24.4c 33.3 31.0 m 30.6 ides t bound me 19.3c 47.3 m me m 31.3 30.7 21.3c m me 37.9 m 43.4 me me me 30.3 me 20.1c m I6.9c 29.9 m 21.1c m 44.4 m m 9C~ 2 -= s S:OU PM to 5s20 PM East bound: m 27.9 37.3 m 28.8 32.0 m 26.9c m 35.0 m me 43.2 m 25.3 m i m me 28.5 m 37.7 34,4 37.9 30.2 '~ 32.5 31 . £- m m 40.3 32.5 m 42~. 6 m m 35.3 Weat bQUnd: ~$` _ 36.1 36.3 36.5 45.8 36..8 35.3 31.1 m '~ - 34.6 m m 33.4 m me m 38.3 ti,=s _. 38.5 m 42.9 24.5c m m 42.3 42.3 _ .~ m 23.2c 29.5 36.1 34.1 34.4 m m Y = m m 34.1 47.3 32.0 39.0 46,1 me t~_ - 48.7 m m m m ~- Note: m indicates the speed observation was missed and a w_ -- indicates the car entered or exited Lucaya Avenue which distorts =-- the ,speed of the car over the 100 foot section and was omitted from the calculations. Since the data does not indicate significant departure from a Gaussian distribution the assumption of normally distributed data wi1.L be made. - 8:20 to 8s45 AM 5:00 to 5:20 PM East bound East bosand -- Submitted into the p~~z~lzc n = 30 n = 1 a record in connection v~~it~ __ _ X = 36.3 X = 34. i item ~''~a~ - ~ on ^~.~ -- ~n-1 - 6.38 ~n-1 = 1..20 ~ - attY Hirai -- West bound West bound City Clerk n= 8 n=24 X = 36.3 X = 38.0 cTn-1 = 8.12 ~n-1 = 5.29 Total Sample - n = 80 - X = 36.3 - o-n_ 1 6.04 = 89.796 confidence limits are: 34.3 to 38.3 = d 9CD-~8~ ~. i _ ~ Some interesting points to be make about traffic observed during the study : Submitted into the public voter 12x6 eRCeeded 4 iee~ord in connection with. Over 26'~ eACeerled 4(~~hm fb o~rPr 52% exceeded 35~h Mafty Hirai 8516 exceeded 30eph - T8B LEGAL SPEED LIMIT City Clerk In regards to traffic volume studies done by the city, I would like to present the following observations: The traffic counting devices were located as shown on the map during the study conducted 28 February 89. These were indicated to be the same locations used for the study conducted prior to the installation of temporary barricades along 27th and Aviation Avenues. It should be noted that these locations miss traffic on 28th Street in the following traffic patterns: * All traffic turning east from 2.4th Avenue * All traffic turning west from 24th Avenue * Ail east bound traffic to Lucaya * All west bound traffic from Lucaya * All traffic using `l6th Ave. and 28th St. to bypass the US 1 and 27th Ave. intersection. * All traffic to and from Kirk, Freeman and 22nd Avenue Solely on the merits of it's design, the study conducted by the city understates the traffic flow on 28th Street. My observations can give you an ideas of how grossly understated they may be: 2196 of my west bound observations originated from Lucaya. These observations would not have been picked up by the city traffic study. This could mean that the 803 and 479 car counts presented by the two city studies could conceivably be 1020 and 608 just by factoring the traffic originating from Lucaya. My west bound counts when changed to hourly figures (not including the Lucaya vehicles) are still approximately twice as high as the city's February 89 study: 5:00 ~- 6:00 PMJ my study produces 126 per hour while the city study produces 66 per hour. I strongly suspect that the city's positioning of the traffic counters over looked the large volume of traffic that turns west off of 24th Avenue on to 2Sth Street during the evening rush hour. After doing some basic calculations, I could easily support that the city's traffic volume study on 28 February 89 is understated when said to be 1353 for the day. I could (using the same logic used by the City Traffic Department) arrive at a figure of 1628 ~~~ ,I 4 with only the missed earlier 28th Street volumes??? r traffic from Lucaya Avenue. This also puts studies in suspicion of understated traffic Furthermore, the south bound traffic on 24th Avenue outnumbers the noirth bound traffic 6?7 to 2A9. Tf these numbers are regresentative of a typical day, where are the additional 488 south bound care going??? I highly suspect many of them are turning east or West on to 28th Street. Agafn, the traffic counters on 28th Street as positioned by the city could never pick up this information. My opinions are as follows: 1. The traffic studies conducted by the city have not yet addressed the issues of speeding, violation of stop signs and littering to date. My study addresses the issue of speeding and shows that on the day of the study, in a total of 45 minutes, 8596 of the drivers using 28th Street between 25th Avenue and 24th Avenue drive over the posted speed Limit. 2. The city traffic study vn 28th Street (conducted on 28 February 89) was designed in such a way that it under estimated the traffic volume that day. If other traffic studies on 28th Street were desir~ned in the same manner, then they too will have traffic volumes that are under estimated. 3. A Sincerely, Gerald Lee Stankevich Su~,mitted into tiie public record in connection v~ith item ~ on ' ~-s.I~~ . Matty ~irui City Clerk ~~ .~ ~'-~~ v,~ ., y ~~ ~~~~``~,Y._.. A ~,/ ~~ C~ ~~ ~ ~~ C ~~~,~ L ~^ ., ~0 ~~~ a~~? ~e~ .r ~ ~~~ a .~ ~~~ ~ +~ K ~ C ~ ~ ~ + ~~Z-i .. c9 A~ ~.3 2 3 r- ct S+" '}- 22 ~d Aye r submit#ed rota the ,~u~l~~ record in c~nuectian v~itl$ item ~ -•------~.... on t ~ MatfY Hirai City Clerk G\ ~ Su~n~.itted ~~- the p~.b~u~ - zeeor~ a~ connection with Many Hirai City Clexl~ CSRALI? LRB STANKB~IC~i I hold a Bachelor of Science degree fn Quantitative Methods (Statistics and Operations Research) from the University of Illinois and an M.H.A. from DePaui University. My own personal business experiences include owning a truck refxigeration repair business, managing retail grocery operations, conducting marketing research and teaching statistics at the college level. In 1979 I waa hired Corporation) as involved in quality Quality Coordinator 1980 and 1984, I 1200 people. by Republic Steel Corporation (now LTV &teel an industrial engineer. In 1980 I became control activities and ultimately became the for a division of 5500 employees. Between developed and implemented training for over In 1989 I became a principal member of the Deming Method Consulting Group. For four years I had trained and consulted with companies in the implementation of the Deming Method for total quality improvement. (Dr. Deming and his methodologies are recognized internationally and by the Japanese as a major contributor to Japan's post war economic success}. My experience includes a wide variety of clients in various industries such as paper and pulp, steel, chemical, machine manufacturing, glass, food manufacturing, the U.S. military, and others. I have consulted in the United States of America, Canada and Mexico. In January of 1988, I resigned from the Deming Method Group to pursue my own consulting activities. I currently work in association with two other consultants who are also experts in the Deming Method for total quality improvement. However, these consultants would only be brought in for services if requested and approved by a client. The name Stalwrythe was chosen to reflect the ideology behind the groducts and services provided. Stalwrythe (stol°-rith) comes from two Anglo-Saxon words: stathol meaning foundation and wrythe meaning worth. Henceforth, Stalwrythe, a company that provides worthwhile products and services to the client that build a solid foundation for growth and success. We, the residents of Southwest 28th Street, City of Miami, Florida, petition the Commission of the City of Niiami am instruct the appropriate city authority to restrict vehicular a~ccesa on our street. We request this restriction on Southwest 28th Street on the east side of the intersection of Jefferson Street and Southwest 28th Street, which is the border of the residential district on Southwest 28th Street (See attached). This restriction is necessary in Order to protect and preserve the character of our neighborhood from the increase in vehicular traffic and commercial development on Southwest 27th Avenue and on Southwest 28th Street. This restriction is also necessary to be in conformity with those proposed street closures at the intersections of Lincoln, Trapp, Swanson, Inagua Avenues and Aviation Avenue as well as the existing restriction at Jefferson Street and Southwest 28th Street. Should this restriction not be granted, -~e, the residents of Southwest 28th Street will suffer irreparable injury to the character of our neighborhood and property values. %~~ ~' S -------- °~~=-~ ~i --'~ ----------- --- - -_ -_ -_ - a~~~ ____..~~- --------~---- ~- ---=`- ---='~-~----- ~~-~'~-- - ~w oZ~- ~==------------ _~~-.r __ Su? --~--------- _~' ~~ ~__-W~- _--__ Submitted into the public ___ record in connection with ---------item._~.aon_ i~-~ ----------____-____..__------- Matty Hirai ------------------------wit'~"~~-----_--_---------__-_-__-____-_ - ~ ~ ~, We, the residents of Southwest 28th Street, City of M3gmi, Floridg, petition the Commission of the City of Miami to instruct the appropriate city authority to restrict vehicular access on our street. We request this restriction on Southwest 28th Street on the east side of the intersection of Jefferson Street end Southwest 28th Street, which is the border of the residential district on Southwest 28th Street (See attached). This restriction i9 necessary in order to protect and preserve the character of our neighborhood from the increase in vehicular traffic and commercial development on Southwest 27th Avenue and on Southwest 28th Street. This restriction is also necessary to he in conformity with those proposed street closures at the intexaections of Lincoln, Trapp, Swanson, Inagua Avenues and Aviation Avenue as well as the existing restriction at Jefferson Street and Southwest 28th Street. Should this restriction not be granted, we, the residents of Southwest 28th Street will suffer irreparable injury to the character of our neighborhood end petty val a .~ G ----~tt$m3tfL~d'in~Q~he pu~Tic----------------------- _____-----------.~-3~~ZaY~ in conn`ecfiorivvit~----------------------- ----------------------------------~-~~~i-------------------- ---------------------------------.-Cit:Y.~~~--------------------- ~~ We, the residents of Southwest 28th Street, City of Miami, Florida, petition the Commieaion of the City of Miami to instruct the appropriate city guthority to restrict vehicular access on our street. We request this restriction on Southwest 28th Street on the east side of the intersection of Jefferson Street and Southwest 28th Street, which is the border of the residential district on Southwest 28th Street (See attached). This restriction is necessary in order to protect and preserve the ' character of our neighborhood from the increase in vehicular traffic and commercial development on Southwest 27th Avenue and on Southwest 28th Street. This restriction is also necessary to be in conformity with those proposed street closures at the intersections of Lincoln, Trapp, Swsnson, Inagua Avenues and Aviation Avenue as well as the existing restriction at .Iefferson Street and Southwest 28th Str.Pet. Should this restriction not be granted, we, the residents of Southwest 28th Street will suffer irreparable injury to the character of our neighborhood and party val. a .• .~ . ~~~- J ~~ ---__-_-_______~.--.~tbi~~#~'d'%n~a~i-e pu~bTic--------`------------°- ------------------~~~~~ in' cQnnec~ion witfi----__------------------ -------------------~x~---,~~--an-- ,~..~.~ -------------------- ---------------~-------------------I,-~t~~~ °------------------- __------~--------------------------Cis ~~~----------_----------- 90-~Q083 We, the residents of Southwest 28th Street, City of Miami, Florida, petition the Commis9jon of the City of Miami to instruct the appropriate city authority to restrict vehicular access on our 9txeet. We request this restriction on Southwest 28th Street on the east Bide of the intersection of Jefferson Street and Southwest 28th Street, which is the border of the residential district on S~-uthwest 28th Street (See attached). This restriction is necessary in order to protect and preserve the character of our neighborhood from the increase in vehicular traffic and commercial development on Southwest 27th Avenue and on Southwest 28th Street. This restriction is also necessary t9 be in conformitq with those proposed street closures at the intersections of Lincoln, Trapp, Swanson, Inagua Avenues and Aviation Avenue as well as the existing restriction at Jefferson Street and Southwest 28th Street. Should this restriction not be granted, we, the residents of Southwest 28th Street will suffer irreparable injury to the character of our neighborhood and property valu s. Submitted into the public second in connectis~n 'with _ _ __ --------- - - -- ~Jlatty Hirai ---------------------------~=.~ ---------------~I-tg ~e~------------ ~~} We, the residents of .Southwest 28th Street, city of Miami, Florida, petition the Commission of the City of 1~7iami to instruct thQ appropriate city authority to restrict vehicular access on our street. We request Chia restriction on Southwest 28th Street on the east side of the intersection of Jefferson Street and Southwest 28th Street, which is the border of the residential district on Southwest 28th Street (See attached). This restriction is necessary in order to protect and preserve the character of our neighborhood from the increase in vehicular traffic and commercial development on Southwest 27th Avenue and on Southwest 28th Street. This restriction is also necessary to be in conformity with those proposed street closures at the intersections of Lincoln, Trapp, Swanson, Inagua Avenues and Aviation Avenue as well as the existing restriction at Jefferson Street and Southwest 28th Street. Should this restriction not be granted, we, the residents of Southwest 28th Street will Buffer irreparable injury to tt~e character of our neighborhood and property values. e, -- --- ~..r-----------------------------------..---~---- ------ --------- - ---------- ------- ,1 -~-~~ ~ ~ ~--------------- -------------- ---- - ------- - ~u- ~~a ~ ~------------ -------------___----- ~t~bmittec~ into_fhe pru~:~----------------_-~__ e~rd rn connection ' ..._ --------------------- x ---- --__---__ ~.~~_-----------------__ . item ~~~ s fatty Hirai -------------------------___-w-------~~ ~rer~ -`---------------- W:e, the residents of Southwest 2$th Street, City of Miami., Florida, petition the Commission of the City of Miami to instruct the appropriate city authority to restrict vehicular access on our street. We request this restriction on Southwest 2$th Street on the east side of the intersection of Jefferson Street and Southwest 28th Street, which is the border of the reai.dentiel district on Southwest 28th Street (See attached). This restriction is necessary in order to protect and preserve the character of our neighborhood from the increase in vehicular traf€ic and commercial development on Southwest 27th Avenue end on Southwest 2~3th Street. This restriction is also necessary to be in conformity with those proposed street closures at the intersections of Lincoln, Trapp, Swanson, Inagua Avenues and Aviation Avenue as well as the existing restriction at Jefferson Street and Southwest 28th Street. Should this restriction not be granted, we, the residents of Southwest 28th Street will suffer irreparable injury to the character of our neighborhood and property values. ~~_ ~ ~ ~ ~ ~ ry __ _ __ - - ------------~~ ~ ~ ~S ----------- ~~r ~3 - _ -- -- _-_-- -~.~-~--~w_-~~. ---------------- =- ~ ~-~ -,- - . ~. y~ ~v~l ~~ s? ~ ~ t ~~ -- ~~~ -~ _ , --------------°---~~~ittet~-l~fo the public ~__---------.___________ ------------------~seera~zII- --- ~-----_______--------________-- ~$nec~an with -------____________-_____________~n~..~-rui_-__------..---____...._ ---_----____------_--_________--_~?~'Y ~lex3c._-___-________________