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Exhibit 6
Ps �? i§casr clo,F§ f: fly 0 IRLE HAV�NA HOME DE„, TRAFFIC CALMING STUDY Prepared by Marlin Engineering, INC. OCTOBER 2005 .Tr an spo tai ion fanriing:• Tr aft C3i irl(:E:riiig: P 1-1ighvv7y ►c �igri farnicipaI Aviation lrarisii. Gout irncii[i' Mari c::rne11 13nclg'3In ctit) n 2191 NW 97 Avenue Miami, Florid a33172-2313 Tel. (305) 477-7575 Fax (305) 477-7590 www.marilnengineering.com rry o w;rn The East Little Havana Home Depot Traffic Calming Study 1:1,223311:4141=PETZEMMILSEEIRIERMILELIMAr CITY OF MIAMI THE EAST LITTLE HAVANA HOME DEPOT AREA TRAFFIC STUDY 11�ar1Tn tngineering, )nc. October 2005 Prepared by Marlin Engineering, Inc. October 2005 .mNiu41tL ... t ,1,..' RImoN w ity D 1Qestar.a.faxuAtrx•xe ncrivr4V...v.�]Rigd@Mm ii.nhv RzEcst usumaC(awern MM'.4F�dexa I17 m: The Gast Little Havana Rome Depot Traffic Calming Study 3110.7 EXECUTIVE SUMMARY This report presents the findings of the traffic calming study conducted by Marlin Engineering, Inc. for the East Little Havana Home Depot Area located in the City of Miami, Miami -Dade County. The study addresses residents' concerns related to traffic intrusion and excessive vehicular speeds within the neighborhood. In an effort to develop a traffic calming plan for the neighborhood, Marlin Engineering collected existing traffic information including vehicular speed, traffic volumes, crash data for the period from 2003 to 2005, land use, and transit service. Field Observations and analysis of the data collected revealed troubled spots within the neighborhood. These locations were reviewed and determined to warrant implementation of traffic calming devices. The recommendations of the report are to implement a traffic calming plan that will include four traffic circles and a modified traffic circle at strategic intersections. The proposed circles should reduce vehicular speeds, minimize traffic intrusion and reduce vehicular conflicts at these intersections. Preliminary cost estimate for the installation of the recommended traffic calming devices is about $85,000. Liar in Engineering, Inc. October 2005 M,2,1114‘ W�F ®R86Y'AIYtSR/A1V2GS AIL�iR'A':[IKIM YB '•••^'••• wu•w^1�0VICTIASWESM'IUME1�SLIMUMITRIF88 INEMNIULIMMONIZINETtry a rarnt The East Little Havana Home Depot Traffic Calming Study ii TABLE OF CONTENTS 1.0 INTRODUCTION 1 1.1 Purpose 1 1.2 Background 1 1.3 Objectives 1 2.0 NEIGHBORHOOD TRAFFIC MANAGEMENT 4 2.1 Traffic Data Analysis Methodology 4 2.3 Traffic Calming Analysis 4 2.3.1 General Requirements, Constraints and Data Collection 5 2.2.2 Selection Criteria 6 2.2.3 Scoring and Prioritization System 7 3.0 EXISTING TRAFFIC CONDITIONS 8 3.1 Study Area 8 3.2 Land Use 8 3.3 Public Transit 8 3.4 Data Collection Methodology and Analysis 11 3.4.1 Traffic Data 11 3.4.2 Roadway Characteristics Inventory 13 3.4.3 Crash Data 13 4.0 TRAFFIC CALMING ALTERNATIVES 20 4.1 Recommended Traffic Calming Locations 20 5.0 TRAFFIC CALMING GUIDELINES 23. 5.1 Guidelines for Traffic Calming Projects 23 6.0 RECOMMENDATIONS 25 ngtneerrng October 2005 MARL! ltyO ra1711 The Last Little Havana Home Depot Traffic Calming Study LIST OF TABLES Table 1 — Selection Criteria Warrants 6 Table 2 — Scoring System for Prioritizing Warranted Traffic Calming Locations 7 Table 3 — Statistical Summary of Land Use Type within Study Area 8 Table 4 — Street Functional Classification and Pavement Width 15 Table 5 — Recommended Traffic Calming Devices by Locations 20 Table 6 — Cost Estimate of Recommended Traffic Calming Devices 25 LIST OF FIGURES Figure 1 — Study Boundaries 3 Figure 2 — Roadway System within Study Area 9 Figure 3 — Land Use within Study Area 10 Figure 4 — Traffic Counts within Study Area 12 Figure 5 — Traffic Control Devices within Study Area ..14 Figure 6 -- Crash Distribution within Study Area .16 Figure 7 — Traffic Calming Plan for east Little Havana Home Depot Area ..21 Figure 8 — Proposed Modified Traffic Circle 22 Figure 9 — Traffic Calming Study Process 25 LIST OF APPENDIXES APPENDIX A: East Little Havana Home Depot Area Traffic Calming Study Data Collection and Selection Procedures APPENDIX B: East Little Havana Horne Depot Area Existing Traffic -related Conditions Marlin Engineering, Inc. October 2005 IVi/E�tLI exa.wrcxmc 1iinraim1 16 OP Ra'N9iMEE4mTgratbrairSdBi2SC.i4 �I . •M1ERMIS➢M try vi o tan The East Little Havana Have Depot Traffic Calming Study 1 1.0 INTRODUCTION 1.1 Purpose The purpose of this traffic study is to address local residents concerns regarding vehicular intrusion and speeding within the East Little Havana Home Depot Area located in the City of Miami. Marlin Engineering has been retained by the City of Miami to study the local traffic patterns and determine if traffic calming measures are warranted. 1.2 Background East Little Havana Home Depot Area is a residential community centrally located within the City of Miami. The study boundaries include SW 8th Street to the north, SW 27th Avenue to the east, SW 16th Street to the south, and SW 32nd Avenue to the west. (see Figure 1 ). The predominate land use within the study area is residential. There are approximately 350 single families, 187 multifamily, and 1 park within the neighborhood. Commercial land uses exist along SW 8th Street where a Home Depot and commercial strip malls are located. The City of Miami is committed to improving the quality of life' for its residents. This requires a balance between providing safe and efficient roadways for pedestrians, as well as, vehicular traffic. In an effort to address the local residents concerns the City has adopted the Miami -Dade County Traffic Flow Modification guidelines and standard procedures, to develop an area -wide traffic calming plan for the study area. 1.3 Objectives This report focuses on addressing existing traffic conditions at critical intersections and roadway segments, identifying feasible improvement alternatives and recommending solutions for implementation through traffic calming projects. The following goals have been set to accomplish these objectives: • • Consolidate existing traffic data Determine critical intersections or segments within the East Little Havana Home Depot Area Perform traffic data collection Perform traffic calming analysis Develop traffic calming alternatives arlin Engineering, Inc. October 2005 A�f!lRtf 4 lNGIM...1 ILiR �ionr imS= 1�s�+wint5. men rep Emu i6mkim MNNTOIDITateriS YNIMP01103LLiW l8aLAWn a� ?MEOW l9lY9.'4 1R.i14t@NRG..=MAVIL& tty o� iatTtt The Bast Little Havana Home Depot Traffic Calming Slue!), 2 T Prepare preliminary recommendations for City's review Present study results to Miami -Dade County Present study results to City Commissioners Marlin Engineering, Inc. October 2005 INMNP[FMia a m+3)*ISS Pt IITIMi, IRTEMIL7171 '3� mrt. frv..nruu�uusRmac1.11571Tzu L99laRPTYma ally Oi ta1731 The East Little Havana Horne Depot Traffic Calming Study 3 Figure 1 Study Boundaries ifarTtnEngineerfng, Inc. October 2005 MARU ..»„«,* • 113. 11RINNUESSMIKVITA �A, , d nT117... nrnm-li��fima�S+'sfa.,.. x.,..u.nn,..y.raa aKmMIHOI 3sA�..a�xaua� 1MTPA,M.NEF+t rra9vm217011 .veuua' ISSIMI IZEISESTIII, a. ...ceearten latr3nrrvenm Jai one¢aa' x�II�ininrc ray - !!V O ia7n! 77ie Fast Little Havana Home Depot Traffic Calming Study 4 2.0 NEIGHBORHOOD TRAFFIC MANAGEMENT 2.1 Traffic Data Analysis Methodology One of the key elements for the success of any traffic calming program is to identify and determine the magnitude of the perceived problems. The magnitudes of existing problems were determined through the review and the analysis of the traffic data collection. The following data collection methods and techniques were utilized to gather information for the traffic calming analysis. Speeding - To ascertain whether a speeding problem exists for a given roadway segment, a 24-hour speed study was performed at the 16 locations identified in Figure 4. This typically entails measuring each vehicle's speed for the desired time period (24- hour), and calculating the 85th percentile speed for the traffic stream. This is the speed below which 85% of the vehicles measured were traveling. When this calculated value significantly exceeds the desired travel speed for the roadway, then a speeding problem exists. High Traffic Volume - If high traffic volume has been identified as the critical traffic issue for a residential neighborhood; traffic counts for the roadway are required to determine the magnitude of the problem. The total daily traffic and the AM and PM peak hour volumes, if needed, are calculated to determine the magnitude of the problem. Crash Review - A review of crash records is usually performed to determine the locations of crashes within the residential neighborhood. This is followed by a field review to identify the probable causes and to identify appropriate countermeasures. 2.3 Traffic Calming Analysis The following methodology and selection criteria defined by in this study is similar to traffic calming procedures already established by Miami -Dade County and implemented in other U.S. cities. The process followed in this study and described below begins with the petitions from concerned residents. Marlin Engineering, Inc. October 2005 mak% IMBEIVIIMCMAKelrelitliih iIy a ianza The Easi Little Havana Home Depot 'Traffic Cairning Study 1 5 2.3.1 General Requirements, Constraints and Data Collection The following geometric and operational criteria must be met in order for a roadway segment to be considered for traffic calming improvements. • Traffic calming measures will be limited to local residential streets and city residential collectors. ■ The posted speed limit may not be more that 30 mph (local residential streets) or 35 mph (residential collectors). ■ Traffic calming measures will be limited to streets with only two lanes of travel. ■ Streets must not be used as a primary route for emergency or fire rescue vehicles. • Traffic calming devices may not be installed if curves or obstacles would create an unsafe condition for motorists driving at the desired speed limit under normal driving conditions. • The street may not be a through truck route, unless an acceptable alternative route is identified. • The traffic calming plan shall not adversely affect pedestrians and/or bicycles safety. • The traffic calming plan should not adversely affect street drainage. The following data and information for the study area were used for the traffic calming analysis: ■ Roadway functional classification (local residential streets or city residential collectors) • Average daily traffic (ADT) ■ Traffic speed during an average weekday • Community facilities and schools ■ Emergency vehicle routes ■ School bus and local bus routes • Through truck routes • Alternative routes that traffic may take if Traffic Calming Devices are installed ■ Number of crashes Marlin Engineering, Inc. October 2005 M ARI rty a ratni The East Little Havana Horne Depot Traffic Calrning Study. 6 2.2.2 Selection Criteria The following selection criteria warrants shown in Table 1 can be used to determine whether a specific location or a segment of a roadway is warranted for traffic calming or not. Table 1 - Selection Criteria Warrants Criteria Local Residential Streets Residential Collector Minimum Volume > 1,000 vpd > 2,000 vpd 85th Percentile Speed 5 mph > Posted Speed Limit 5 mph > Posted Speed Limit Cut -Through Traffic Percentage 25% 50% Pedestrian Crossing Volume 25 50 Correctable Crashes Per Year 3 6 The cut -through traffic percentage for the segments is calculated as follows: Cut -- through Traffic Percentage= TT TT T x 100% TT--EHHtxTR, TT where: TT= Total Vehicle Trips, which means the traffic volume counted through the segment; ET= Estimated Residential Vehicle Trips through the segment; HHl = Number of Households by type (single family, multi -family, apartments, etc.); TRl = trip rate based on the type of households; Two or more of the five warrants must be met before the city will accept a petition from a neighborhood for a full-scale study. Appendix A shows the results of the traffic calming selection criteria process for each study zones. ar in ngtneertng, nc. October 2005 MAIUJ H.W t nIftcU Ziwx- .ns.+raimnA a The East Little Ha»ana Nome Depot Traffic Calming Study 7 The appropriate traffic calming alternative is then identified, for each location, to solve existing traffic problem(s). 2.2.3 Scoring and Prioritization System A scoring system has been developed to prioritize the roadway segments which meet the traffic calming criteria (see Table 2). Roadway segments meeting the criteria are sorted based on the accumulation of points with the segment attaining the highest score given highest priority. Other considerations may include the complexity and the size of the traffic calming alternative, as well as the cost of implementation. Appendix A presents the results for the roadway segments within the study area. Table 2 - Scoring System for Prioritizing Warranted Traffic Calming Locations Category Points Assignment Speed (85th Percentile) 0 - 35 Percent over Speed Limit multiples136 then Divided by speed limit Current Trade-off Volume (vpd) 0 - 30 City Residential Collectors: ADT Divided by 75 Local Residential Street: ADT Divided by25 Pedestrian Activities 0 - 5 5 Points for any Public Facility (Park, Community Center, Elderly Housing) on the Subject Street Traffic crash 0 - 20 20 Points for more than 6 correctable traffic crashes for last 3 years on the Subject Street Pedestrian & Bicycle Routes 0 - 5 5 Points if the Street is a Designated Pedestrian or Bicycle Route No Sidewalk 0 - 5 5 Points for no Continuous Sidewalk on at Least One Side of the Street Total Maximum Points 100 Marlin Engineering, Inc. October 2005 ®L'Vi1MSERMIZEM U 0 IQN71 nraia @>lSKNSRi&NiTuNNEYiMAT6110.'�P�PJP5:�4f91'Pfl..Mt .3]LexMv �'•.�•••^••R,yygRTHN3e081 ,1I�S� � R, lO�F flRi%#lIW6i6mMRW/184EiV.YST.i:sALT15 The Cast Little Havana Home Depot Traffic Calming Study EINZIEMILMVISSWIMIESISNEWMIUMM"EMMUROZWAriala8600611.1111WaCIF..".4NLWASIIMAZ 8 3.0 EXISTING TRAFFIC CONDITIONS 3.1 Study Area The East Little Havana Home Depot Neighborhood is a residential community bounded by state major arterial and collector roads. The East Little Havana Home Depot Area roadway system is shown in Figure 2. The study area is served by several major and minor urban arterials: • SW 27tt' Avenue (major arterial) is on the east • SW 8th Street (major arterial) on the north • South 16th Street (county collector) on the south • SW 32nd Avenue (county collector) on the west 3.2 Land Use The land use within the study area is mainly single family residential. Properties along SW 8th Street and SW 27th Avenue are mixed commercial and retails. Figure 3 depicts the land use of the study area. Table 3 presents the summary of land use type within East Little Havana Home Depot Area. Table 3 Statistical Summary of Land Use Type within Study Area Land Use Type No. of Parcels Percentage 350 58.4% Multi -Family (including Townhouses and Duplex) 189 31.6% Retail, commercials, Offices 34 5.7% Other 26 4.3% Total 599 100,00% 3.3 Public Transit Currently there are no public transit route operating within the study area. tl�arlin engineering, Inc. October 2005 me�` NWu.,�.M tryo aam� nwxd..zENCFN. _ P,MYMPtAVaAK`]M0,41.2-4.0gtRINIdRSMAY1RT&.Sr�ffi4 A.SOLTd.ASYRIEEPareaE41441iIEW{RR ITZCCIFMWI EIMMIZMILHV9dEIRCZM GYM . The East Little Havana Hone Depot Traffic Calming Scud} 9 3AV ©NZ£ MS SW 8TH ST LEGENDS Functional Classification Principal Arterial Collector Local Streets SW 11TH ST SW 12TH ST SW 14TH ST m SW 16TH ST A 111 Figure 2 - Roadway System within Study Area Marlin Engineering, Inc. October 2005 !AV?* Figure 3 - Land Use within Study Area Legends Land Use Industrial Institutional Low -Density Multi -Family Mobile Home Parks High -Density Multi -Family Office Parks Shopping Centers Single -Family Townhouses Transient- Residential Two -Family (Duplexes) Vacant Unprotected Vacant Government Owned Water oD 'oda j auroF try o tar 11 The East Little Havana Nome Depot Traffic Calming Study 11 3.4 Data Collection Methodology and Analysis In order to complete the traffic study data was collected from a number of sources, these included: • Traffic Data (Traffic Volumes, Vehicular Speeds, and Intersection Turning Movement Counts) • Roadway Characteristics Inventory • Vehicular Crash Data • Traffic Flow Patterns 3.4.1 Traffic Data Based on input from local residents and field observations, 16 locations were identified for 24-hour volume and speed surveys. Intersection turning movement counts were collected at the intersections of SW 8th Street at SW 32nd Avenue and, SW 8th Street at SW 31st Avenue. Figure 4 displays the results of the data collection surveys. Initial analysis of the data indicated that there was evidence of vehicular intrusion into the neighborhood along SW 29th Avenue, SW 31st Avenue and SW 11th Street. Field observations confirmed these results. Approximately 59% of the traffic along SW 31st Avenue enters the neighborhood from westbound SW 8thStreet and proceeds to SW 11th Street at which point they may continue south along SW 31st Avenue or proceed west along SW 11th Street. In addition, approximately 44% of the traffic on SW 11th Street is intruding into the neighborhood from SW 29th Avenue and SW 27th Avenue. The intrusions may be a result of the geometric configuration at the intersection of SW 8th Street and SW 32nd Avenue. Because of right-of-way constraints, a westbound to southbound movement is not permitted at this intersection forcing the vehicles to use alternate routes along SW 31st Avenue, SW 29th Avenue, SW 27th Avenue, and SW 11th Street. Marlin Engineering. Inc. October 2005 PNt4NIUIN 'S14iRF1WS.RCMIs W:®9L'O17•4.MTZFIWSWLT-5llaIT. IRVn9 Vfa.VrN..W.VV......K......uvac[attq 9WY"Tasl %»sTi HL'liKI'e®t+f&va¢���ci4sv'�BLCMIAA�N3eli dl 'A9W.6 ity o !WM The Enst Liule Havana Horne Depot Traffic Cabning Study 12 Jkazaremisrassuruairmeowewawalmfra. Itumas w n vaw arm. Figure 4 - Traffic Counts within Study Area Marlin Engineering, Inc. October 2005 EAW TPAERSRS4' ..c+ !S+'4FlR^' iffiil 1017=19G�IGINA, �II)r 0� Ia1771 The East Little Havana Horne Depot Traffic Calming Study 13 3.4.2 Roadway Characteristics Inventory An inventory was conducted to collect the physical characteristics of the roadways within the neighborhood. Information such as pavement widths, traffic control devices, roadway geometries and roadway functional classifications were collected. The inventory revealed that the majority of the intersections located within the residential neighborhood are controlled by two-way or four-way stop signs. The boundary intersections located on NW 27th Avenue, SW 8t'' Street, SW 32nd Avenue, and SW 16th Street are controlled by traffic signals. Theposted speed limit within the study area is 30 mph. Figure 5 identifies the locations of the traffic control devices. Field observations identified deficiencies with pavement markings at the intersections located within the study area. The deficiencies included faded stop bars, lack of stop bars, and lack of pavement striping for directional traffic flow. It was also observed that the vehicles park on the swale throughout the neighborhood. Based on the Florida Department of Transportation Roadway Functional Classification scheme it was determined that all the roadways within the study area are designated local residential. Table 4 presents the Florida Department of Transportation Roadway functional classification and the pavement widths for the roadway network within the study area. 3.4.3 Crash Data Local crash data for the period between 2003 and 2005 was obtained from the City's Police Department. Analysis of the crash data revealed that 20 crashes were identified as correctable crashes. The crashes were concentrated at four intersections: • SW 11th Street and SW 29th Avenue ■ SW 12th Street and SW 29th Avenue • SW 12th Street and SW 30th Avenue • SW 12th Street and SW 31st Avenue Figure 6 identifies the location and distribution of the vehicle crashes. A field review was conducted at each of the intersections to determine the probable cause for the crashes the findings are highlighted below. Mardtn lrngtneertng, Inc. October 2005 MARL " IV....,==.1511WROMENNIMP;12d7rtnu -.. The Eost Little Havenia Home Depot Traffic Coining Study I/1 ,4 4_ I • •• • • '" • 29.1° AVIA ' „ -L• f".` ° I I R.'. I • -;•• "°°-°' •_" 11,.1.1 • • -1 I 615ror 6 %Turq - • 14 f • t ' •;,) r , .-, F' I:: ' • ' .1 '' •6 f..._.....„4. 6') . , . , i iil . i'.R .1,:-. 2.:. . A; ., cr,5 1..,,, )1.1, : i , •,; '.. `. 1 .., A.i. i . i _ v„,,, . I if: L ' tr, •„ .., , k„.,„ ,, i5: -'4) :'''gi j, Fli - . " r .. 1. f 1 . I: ' .. . . 1 , i ' 'L • , ; - `:,r1* , . . ,,J , ,.., .1 , , . i,., ,, ' " fr, r i .. [..t.. '..1-slorl . 1'1 [IP :. ' ' "' . ''''' 'CI' l'' . . .4., l' F . 'L • ' ' r 1 $0!. ...r1. ,-41.I:.' .i.:.,' .,-1 'I .:. • '4ir,''''1'' '.1, . _ . '.e',:..qi.t°°,i'1dViP':. rlo''r,q/7:..;d;..,'0,.0i.."',.17'1.,1 0' 9.j,1 6-i 6."i...1V t !e`,t.il.':,..',.,......' , 'r . • ; , c,1Ij :11 1 AV cf `: ' 1 '!'• . ,, ''''..041'1' ' , r ANSI ' . PO ..' '., ', . .1-,' • kl,°• AN i r ) 'I ,t ,.•,, II ' ... : '. n .114 'Li ' . ,, JD/ SI ',,'; 1:-.7- 1 r'' . j-: , 'r- ' .• --: -,'` • ' -.4..»:-..r:—•_,....—`:: - .1r :t' - -' #(... J4 ) r . r I ilq,•• trs±., ,• .., • i':•!.. • Figure 5 - Traffic Control Devices within Study Area Marlin Eigineering, Inc. October 2005 rasaar lm 0 ne 7127mraros+3anv4.110 rt rswm112MCS41u7P3M- r^3. K AMEME 1w.^.rnvr4..rRttl.M471.1,.... ssv[ ..MrtrAKVONAPArefiT.B rIWEVmsa*mase.SCeu,sammM7a u.,nxr1r747 r r MITI PLIINuMINLIZMITSI7.rx� .•t F� : The East Little Havana Home Depot Traffic Calming Study 1 5 Table 4 -Street Functional Classification and Pavement Width Street Name Location Street Classification Posted speed Limit (MPH) Width (feet) SW 13TH ST Between SW 27th Ave to SW 32nd Ave Local Residential 30 22 SW 14TH ST Between SW 32 Ave to SW 30th Ave Local Residential 30 24 SW 31ST AVE Between SW 13th St to SW 16th St Local Residential • 30 18 SW 31ST AVE Between SW llth St to SW 13th St Local Residential 30 18 SW 12TH ST Between SW 27th Ave to SW 32nd Ave Local Residential 30 18 SW 14TH ST Between SW 27th Ave to SW 32nd Ave Local Residential 30 24 SW 15TH ST Between SW 27th Ave to SW 32nd Ave Local Residential 30 20 SW 30TH AVE Between SW 13th St to SW 16th St Local Residential 30 20 SW 31 ST AVE Between SW 8th St to SW 11 th St Local Residential 30 28 SW 11 TH ST Between SW 27th Ave to SW 32nd Ave Local Residential 30 21 SW 30TH AVE Between SW 8th St to SW 13th St Local Residential 30 20 Marlin Engineering, Inc. October 2005 IY,I,I.R.,L2114. elmerXrilm.,^312;01-3,1 /11W.,,,-3,Mii,V,I=FRITSULN.:1-7,,P1,.....Ellehatc:10a4aVgaril117,14StimaMatielInnyras..imall,ris.V.- • malEMOSEMPIMIMMIRINITAMIWPW1117.111.MESIVFMNSTOrM11=53221V7M1211M2171,WRIOW. I 1Y of maim The East Lillie Havana Home Depot Traffic Calming Study 16 11.001AW0010000.04.2.002:1 nii.C.103.1201000.01:0010000C10R0aaalaraiaLVIR00103291001:0AA Figure 6 - Crash Distribution within Study Area Crash Legend MRFOL0f0ditclip • .4100 • MA • 04,650101 • Dal d 100. ▪ 1000 Torn • t 1.4440 C fr 09 01 014 0 10. Ythlde 111010 p de • col W. 01 likin A 1011itin • 0111.001 SW 12TH ST SW 16TH -T ar rn ngineering, nc. October 2005 MARL! IN00,000 rarr71477,7.-moTrararrraur,5,1ra sarATT,..morwarcnamehrgnaMilitrateaur.r.tMegr. ISIEFLISFEGUM I Y 0 lain! The East Little Havana Home Depot Traffic Calming Study 17 reintingualfamkX ffiRaViaatalgaNg SW 11th Street and SW 29th Avenue: The crash analysis revealed a total of five crashes at this intersection. Field reviews revealed that the intersection is controlled by a four-way stop sign. Although SW 12th Street and SW 29th Avenue: Field observations revealed that the intersection geometry along the south approach is confusing. The traffic control device (Stop Sign) is positioned the sight distance is reduced at the intersection the traffic controls appear to be adequate for this location. The majority of the crashes occurred during the 2003 to 2004 analysis period. It appears that the four-way stop may have been installed towards the end of 2004 when a decline in the crash rate was noted. This may have skewed the results of the analysis for this intersection. within the roadway and is paved on either side. This gives the appearance that the northbound right turn is a free flow movement. This may have contributed to the angle crashes which occurred at this location. Skid marks were also observed on the west approach of the intersection. Adar/in Engineering, nc, October 2005 MEW aa-CiME_____ a n�m11=K�ar MIWAMs� eva. Win....,..a.metm�.xxwsnahxa!nmrvaOvcsrnmca,nsaZO,serne.rea st+ eME116yrva emvrman,,1,1W ;s,n TEUDAIE,zamazrn}vmseeecicIvealatifw �+7J it,a,a-.Im1,vss- in_ obit 18 The Last Little Havana Hone Depot Traffic Calming Study SW 121h Street and SW 30th Avenue: Field observations identified that site distance was very limited at the intersection approaches. Landscaping and parked vehicles along the swales prevents clear view of on -coming traffic, this requires the drivers to intrude into the intersection in order to see any vehicles which may be entering the intersection form an opposing movement. This may have contributed to the angle and rear end crashes that occurred at this location. SW 12t" Street and SW 318t Avenue: Site distance was also identified as a contributing factor for the crashes reported at this location. Parking on the swales, as well as, landscaping inhibits the driver's ability to see on -coming vehicles. It was also noted that the north and south legs of the intersection are not aligned, this may have contributed to the head-on collision reported at this intersection. Marlin Engineering, Inc. October 2005 MARL! FMT.7mIRY47,^_'�:+�yp�• r t nirtsrm.+_[o 'maMIWErSZ175 mwa167VVI ,'s rm10JIMamxnanurrnmmMwnlr��a� 1.Uy o,Iil iarni The East Lillie Havana Home Depot Traffic Calming Study is SW 11th Street and SW 31st Avenue: The north and south approaches of this intersection are offset. Although the crash analysis revealed low crashes at this site, field observations identified a number of conflicts between the vehicles entering the intersection. The north and south approaches are stop sign controlled, but the geometry of the intersection and limited site distance forces vehicles to intrude into the path of opposing traffic. A number of "near misses" were observed during the peak periods. Marlin Engineering, Inc. October 2005 �NOIMIf111M6 1. enramsriewurawrnia.M :(My D faf77f The East Little Havana Home Depot Traffic Canning Study 20 4.0 TRAFFIC CALMING ALTERNATIVES Due to the emphasis placed on design detail and aesthetic quality within the East Little Havana Home Depot Area, any recommended traffic calming device must meet high aesthetic standards. Therefore, many of the traffic calming alternatives considered are expected not only to calm traffic, but also to blend into and accentuate the community landscaping and aesthetic standards. 4.1 Recommended Traffic Calming Locations The traffic data, field observations, and analysis indicate that traffic calming measures are warranted within the Little East Havana Home Depot Neighborhood. Four traffic circles and a modified traffic circle are recommended at five strategic intersections within the neighborhood. The locations chosen for implementing traffic calming devices are listed in Table 5 and Figure 7. In an effort to reduce traffic intrusion and improve the safety along SW 11 th Street a modified traffic circle is proposed at the offset intersection of SW 31st Avenue and SW 11th Street. Field observations identified a number of vehicular conflicts at this intersection; the implementation of the modified traffic circle will reduced these conflicts, as well as, reduce vehicular speed through the area. Figure 7 illustrates the proposed alternatives for this intersection. Table 5 - Recommended Traffic Calming Devices by Locations Street Name Location(s) Recommendation SW 3181 Avenue SW 11th Street Modified Circles SW 30th Avenue. SW 12th Street Circle SW 29th Avenue SW 12th Street Circle SW 29th Avenue SW 10th Street Circle SW 31st Avenue SW 12th Street Circle Marlin Engoteering, Inc. October 2005 eir-M.MVX..lnew 5.51.Ker.f marisoxamikarara.4 wizaressuaranrVarotOrlickr.wen4,1,1,-.13.,21., ra,v.alra41.711a1-.12.8031.1TatrAmr.tairarinqvutErnisscraw.r.ayrarivurxminSZXIMPSM'm I L axe The East Little Havana Horne Depot Traffic Calming Study 2/ 10,6245/14aVANIVAZUMAYEruT SW 8 Street ; . ..... ....... . . ; s ;• - s , -. ; i , 1 S'•-. c : I ; , . , g; c.! < T • SW 100' Street 0 ! ; ; 4 co ! s i i . . it SW 121h Street „..... ,......11, _, .._..,.. ......, ......„.,....,,„..,...4........... i ..:t 4 i i'l SW 131t! Street 1,.. a). el i Legend SW 1illt' Street, .,.., ...4,„_,.. tll Study Area Boundary I ! i I i 1 1 i ''.. _. Traffic Circle •;,, c i Modified Traffic Circle , s i if SW 16TH Sig* — . ..i . , • Figure 7 -Traffic Calming Plan for East Little Havana Home Depot Area Marlin EnineerMg, Inc. October 2005 MARU 'ry o/34.mt Tie East Lirtle Havana Home Depot Traffic Calming Seedy 22 'figure 8 - Proposed Modified Traffic Circle Alternative 1 War liee Engineering. Inc. >csober 2065 Alternative 2 (CMIMvmx SI M,yacv�emana+nvNQa MIUIGrms�a01mmcm 1. tt)r O 1a177f- The East Little Havana Home Depot Traffic Calming Study 23 5.0 TRAFFIC CALMING GUIDELINES This section of the report presents a summary of guidelines recommended for the selection of traffic calming devices, regarding the selection criteria and prioritization methodology. 5.1 Guidelines for Traffic Calming Projects After reviewing traffic calming policies from other cities, and based on findings of this study and coordination with the City and Miami -Dade County, the following traffic calming study process is recommended for the East Little Havana Home Depot Area, to process any request or petition for traffic calming (Figure 8). 1) The traffic calming process starts with receiving petitions from the residents of specific location(s) or street segment(s), expressing their concerns and identifying existing problem(s). If the location(s) is on a county or state roadway, the city will forward their concern to the appropriate agency. Otherwise, the City will study their concern; 2) General requirements should be met before the City starts with data collection at the concerned location(s). After data collection, if at least two warrants are met, the location(s) is considered to be a candidate for a full-scale traffic calming study; 3) After identifying the possible traffic alternative(s) for the specific location, the City will score and rank all the candidate projects for funding prioritization; 4) After the City's decision on implementing the project, temporary traffic calming alternative(s) will be installed at the selected location(s) for a period that ranges from three to six months; 5) After this period, the city will conduct a post -implementation study to determine the effectiveness of the devices. If the device(s) does not satisfy its purpose, the City will try another traffic calming device(s). Otherwise, the City will install a permanent device(s) at the concerned location. Marlin Engineering, Inc. October 2005 ndlar*� 3 try o zarnr The East Lillie Havana Home Depot Traffic Calming Srerdy 24 INIEPEROF Residents Concerns • Petition - Problem Identification Refer to County F___ NO or State Na Street Network Classification Are Streets City Collectors or Residential Streets? YES YES W Date Collection City Residential Collector GENERAL REQUIREMENTS & CONSTRAINTS • Limited to city residential collectors & local residential streets, • Posted speed limit between 30 & 35 mph. • Limited to streets with only two lanes of travel. • Streets are not primary emergency routes, • May not be Installed i1 curved streals would create en unsafe condition, • Streets are not a truck route. • No adverse effect on pedestrians and/or bicycles safety. • No adverse effect on street drainage. Local Residential Street • Traffic Volume" > 2,000 vpd • 85th Percentile Speed > 10 mph over posted Speed Limit • Cul-Through Traffic > 50"% • Pedestrian Volume > 50 pph • Correctable Accidents > 6/year Warrants i • Traffic Volume" > 1,000 vpd • 85th Percentile Speed > 10 mph over posted Speed Limit • Cut•Th rough Traffic > 25% • Pedestrian Volume > 25 pph • Correctable Accidents > 3/year No YES V Identify Traffic Calming Alternatives Project Scoring and Ranking Remove Device Test Another NI-- Na Installation of Temporary Devices Post -Implementation Study \ti YES PRIORITIZATION & SCORING SYSTEM, Calegarr Speed (05th %) Current Vol. (vpd) Palma 0.35 0.30 Vehicle Crashes 0-20 Pedestrian Activity 0.5 Pedestrian & Bicycle 0-5 Routes No Sidewalk 0-5 Total Points (max.) 100 Assignment Percent over Speed Limit multiples 136 then Divided by speed limit City Residential Collectors: ADT divided by 75 Local Residential Streets, ADT divided by 25 25- points tnr ?motion have more than 2 Crashes occurred 5 Points for any Public Facility (Parks, Community Center, Sided)! Housing) on the Subject Street 6 Points if the Street is a Designated Pedestrian or Bicycle Routes 5 Pointe tor no Continuous Sidewalks on at Least One Side of the Street INSTALL PERMANENT DEVICE Figure 9 Traffic Calming Study Process Marlin Engineering, Inc. October 2005 MYGINI RU ■Nan RAa aanu The East Little Havana Home Depot Traffic Calming Stud) 25 6.0 RECOMMENDATIONS The analysis and field observations documented in this report warrant implementation of the traffic calming plan developed for the neighborhood of East Little Havana. The proposed improvements will mitigate the residents concerns of traffic intrusion and excessive speeds within the neighborhood. Vehicles speeds will be reduced and the addition of the traffic circles will improve the over all aesthetics of the neighborhood. It is recommended that the landscaped swales be cleaned and monitored in order to provide adequate sight distance for both pedestrians and vehicles. Table 6 shows the estimated cost for implementing traffic calming devices within the study area. Table 6 - Cost Estimate of Recommended Traffic Calming Devices Type of Device Total Number Unit Cost Estimated Cost Traffic. Circles 4 $ 15,000 $60,000 Modified Traffic Circle 1 $25,000 $25,000 Total $85,000 Marlin Engineering, Inc. October 2005 MARLI gsnrs