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Home My WebLink AboutResponse to Traffic Impact ReviewJackson M. Ahlstedt, P.E. TRANSPORTATION ENGINEERING 46-NW 94rh-STREET/MIAMI SHORES, FLORIDA 33150 / (305) 754-8695 August 30, 2604 Via E-mail Ms. Lilia 1. Medina, Assistant Transportation Coordinator Office of Transportation, City Manager's Office City of Miami 444 SW 2nd Avenue Miami, Florida 33130 Re: Urbanea MUSP Response to Traffic Impact Analysis Review Comments dated August 2,200.4 D� r Ms. Medina: Please consider this my formal response to the comments contained in the letter, dated August 9, 2004, sent to you by Mr_ Raj Shanmugarn, P.E. The letter identifies two issues. My response is as follows: An operational analvs of the intersection of Menores Avenue and SW 37th Avenue is attached. The centerline offset between Menores Avenue and SW 15th Street is approximately 110 feet., Page 38 of the report identifies four possible alternatives for mitigating the impacts of the project on the intersection of SW 16th Street and SW 37th Avenue. To quote the report: These solutions include: • • Channelize the project driveway to create a right -turn -in right -turn -out configuration; Re -stripe the east approach to the intersection of SW 16th Street and SW 37th Avenue to provide two westbound lanes and two eastbound lanes, one eastbound lane to accommodate eastbound project traffic left turns (LOS calculations are provided in Appendix C); Widen SW 16th Street adjacent to the site to accommodate the existing three westbound lanes while adding a second eastbound lane to accommodate eastbound project traffic left turns; or, Widen SW 16th Street adjacent to the site to accommodate the existing three westbound lanes, the existing single eastbound lane and a traffic separator. The decision as to which, if any of the solutions, is up to the City and Miami -Dade County. • • Having addressed these issues, I trust that the application can proceed through the process without further delay. If you have any questions please do not hesitate to contact me. Sincerely, JACKSON M. AHLSTEDT, P.E. ii747L-(7..// J ksora M. Ahlstedt, P.E. Cc: Mr. Raj Shanmugam, P.E. • • • MENORES AVENUE/DOUGLAS ROAD INTERSECTION ANALYSIS • HCS2000: Unsignalized Intersections Release 4.1d TWO-WAY STOP CONTROL SUMMARY Analyst: J. AHLSTEDT Agency/CO.: Date Performed: 8/22/04 Analysis Time Period: AM PEAK HOUR Intersection: DRMA Jurisdiction: Units: U. S. Customary Analysis Year: EXISTING Project ID: URBANEA L - East/West Street: MENORES AVE North/South Street: DOUGLAS ROAD Intersection Orientation-: NS Study period (hrs): .0.25 Vehicle Volumes and Adjustments Major Street: Approach Northbound Southbound Movement 1 2 3 14 5 6 L T R I L T R / Volume 56' 10'0 127'2 3'g Peak -Hour Factor, PHF 0.81 0.98 0.94 0.84 Hourly Flow Rate, HFR 69 1040 1353 45 Percent Heavy Vehicles 0 -- -- -- Median Type/Storage TWLTL / 1 RT Channeli.zed? Lanes 1 2 2 0 Configuration L T T TR Upstream Signal? No No Minor Street: Approach Westbound Eastbound Movement 7 8 9 I 10 11 12 L T R I L T R Volume Peak Hour Factor, PHF Hourly Flow Rate, HFR Percent Heavy Vehicles Percent Grade (%) Flared Approach: Exists?/Storage Lanes Configuration 0 19 89 0.79 0.70 24 127 0 0 0 No 0 0 LR Delay, Queue Length, and Level of Service Approach NB SB Westbound Eastbound Movement 1 4 17 8 9 I 10 11 12 Lane Config L I I LR v (vph) 69 151 C(m) (vph) 495 304 v/c 0.14 0.50 95% queue length 0.48 2.61 28.0 Control Delay 13.4 D LOS B Approach Delay 28.0 Approach LOS D MENORES AVENUE/DOUGLAS ROAD INTERSECTION ANALYSIS URBANEA August 22, 2004 Page MA-2 • • • HCS2000: Unsignalized Intersections Release 4.1d TWO-WAY STOP CONTROL SUMMARY Analyst: J. AHLSTEDT Agency/Co.: Date Performed: 8/22/04 Analysis Time Period: PM PEAK HOUR intersection: DRMA Jurisdiction: Units: U. S. Customary Analysis Year: EXISTING Project ID: URBANEA East/West Street: MENORES AVE North/South Street: DOUGLAS ROAD Intersection Orientation: NS Study period (hrs): 0.25 Vehicle Volumes and Adjustments Major Street: Approach Northbound Southbound Movement 1 2 3 14 5 6 L T R 1 L T R Volume 156 1216 1256 59 Peak --Hour Factor, ?HE 0.71 0.96 0.93 0.76 Hourly Flow Rate, HER 219 1266 1350 77 Percent Heavy Vehicles 0 -- -- -- -- Median Type/Storage THLTL / 1 RT Channelized? Lanes 1 2 2 0 Configuration L T T TR Upstream Signal? No No Minor Street: Approach Movement Westbound Eastbound 7 8 9 1 10 11 12 L T R I L T R Volume Peak Hour Factor, PEF Hourly Flow Rate, HFR Percent Heavy Vehicles Percent Grade (%) Flared Approach: Exists?/Storage Lanes Configuration 0 15 71 0.63 0.80 23 88 0 0 0 No 0 0 LR Delay, Queue Length, and Level of Service Approach NB SB westbound Eastbound Movement 1 4 1 7 8 9 1 10 11 12 Lane Config L 1 1 LR 219 111 v (vph)219 C(m) (vph) 483 2.59 v/c 0.45 95% queue length 2.32 2.49 Control Delay 18.5 35.6 LOS C E Approach Delay 35.6 Approach LOS E MENORES AVENUE/DOUGLAS ROAD INTERSECTION ANALYSIS URSANEA August 22, 2004 Page MA-3 • HCS2000: Unsignalized Intersections Release 4.1d TWO-WAY STOP CONTROL SUMMARY Analyst: Agency/Co.: Date Performed: Analysis Time Period: intersection: ORMA Jurisdiction: Units: U. S. Customary Analysis Year: FUTURE W/O PROJECT Project ID: URBANEA East/West Street: MENORES AVE North/South Street: DOUGLAS ROAD Intersection Orientation: NS Major Street: J. AHLSTEDT 8/22/04 AM PEAK HOUR Approach Northbound Movement 1 2 3 Volume Peak -Hour Factor, PHF Hourly Flow Rate, HFR Percent Heavy Vehicles Median Type/Storage RT Channelized? Lanes Configuration Upstream Signal? Minor Street: Approach Movement L T R 58 0.81 71 0 TWLTL 1 2 L T 1155 0.98 1179 No Westbound 7 8 L T Study period (hrs): 0.25 Vehicle Volumes and Adjustments Southbound I 4 5 6 L T R / 1 1392 0.94 1480 2 0 TR No 40 0.94 47 Eastbound 9 I 10 11 12 R I L T R Volume Peak Hour Factor, PHF Hourly Flow Rate, HER Percent Heavy Vehicles Percent Grade (%) Flared Approach: Exists?/Storage Lanes Configuration 0 19 0.79 24 0 0 0 LR 93 0.70 132 0 No 0 Approach Movement Lane Config Delay, NB 1 L Queue SB 4 Length, and Level of Service Westbound Eastbound 17 8 9 I 10 11 12 I I LR v (vph) 71 C(m) (vph) 442 v/c 0.16 95% queue length 0.57 Control Delay 14.7 LOS B Approach Delay Approach LOS 156 271 0.58 3.31 34.9 0 34.9 0 MENORES AVENUE/DOUGLAS ROAD INTERSECTION ANALYSIS URBANEA August 22, 2004 Page MA-4 • • HCS2000: Unsignalized Intersections Release 4.1d TWO-WAY STOP CONTROL SUMMARY Analyst: J. AHLSTEDT Agency/Co.: Date Performed: 8/22/04 Analysis Time Period: PM PEAK HOUR Intersection: - DR4A Jurisdiction: Units: U. S. Customary Analysis Year: FUTURE W/O PROJECT Project ID: URBANEA East/West Street: MENORES AVE North/South Street: DOUGLAS ROAD Intersection Orientation: NS Study period (Firs): 0.25 Vehicle Volumes and Adjustments Major Street: Approach Northbound Southbound Movement 1 2 3 14 5 6 L T R I L T R Volume 162 1326 1367 Peak -Hour Factor, PHF 0.71 0.96 0.93 Hourly Flow Rate, HFR 228 1381 1469 Percent Heavy Vehicles 0 -- -_ -- Median Type/Storage TWLTL / 1 RT Chanrkelized? Lanes 1 2 2 0 Configuration L T T TR Upstream Signal? No No 61 0.76 80 Minor Street: Approach westbound Eastbound Movement 7 8 9 I 10 11 12 L T R I L T R Volume Peak Hour Factor, ?HE Hourly Flow Rate, HER Percent Heavy Vehicles Percent Grade (%) Flared Approach: Exists?/Storage Lanes Configuration 0 15 73 0.63 0.80 23 91 0 0 0 No 0 0 LR Delay, Queue Length, and Level of Service Approach NB 58 Westbound Eastbound Movement 1 4 I 7 8 9 I 10 11 12 Lane Config L I I LR v (vph) 228 114 C(m) (vph) 434 194 v/c 0.53 0.59 95% queue length 2.98 3.23 Control Delay 22.1 47.0 LOS C E Approach Delay 47.0 Approach LOS E MENORES AVENUE/DOUGLAS ROAD INTERSECTION ANALYSIS URBANEA August 22, 2004 Page MA-5 • • • HCS2000: Unsignalized Intersections Release 4.1d TWO-WAY STOP CONTROL SUMMARY Analyst: J. AHLSTEDT Agency/Co.: Date Performed: 8/22/04 Analysis Time Period: AM PEAK HOUR Intersection: DRMA Jurisdiction: Units: U. S. Customary Analysis Year: FUTURE WITH PROJECT Project ID: URBANEA East/nest Street: MENORES AVE North/South Street: DOUGLAS ROAD Intersection Orientation: NS Study period (hrs): 0.25 Vehicle Volumes and Adjustments Major Street: Approach Northbound Southbound Movement 1 2 3 l 4 5 6 L T R I L T R Volume 58 1165 1388 40 Peak -Hour Factor, PHF 0.81 0.98 0.94 0.84 Hourly Flow Rate, HFR 71 1183 1476 47 Percent Heavy Vehicles 0 -- -- -- -- Median Type/Storage TWLTL / 1 RT Channelized? Lanes 1 2 2 0 Configuration L T T TR Upstream Signal? No No Minor Street: Approach Westbound Eastbound Movement 7 8 9 I 10 11 12 L T R l L T R Volume Peak Hour Factor, PHF Hourly Flow Rate, HER Percent Heavy Vehicles Percent Grade (%) Flared Approach: Exists?/Storage Lanes Configuration 0 19 93 0.79 0.70 24 132 0 0 0 No 0 0 LR Delay, Queue Length, and Level of Service Approach NB 53 Westbound Eastbound Movement 1 4 17 8 9 1 10 11 12 Lane Config L l i LR v (vph) 71 156 C(m) (vph) 444 271 v/c 0.16 0.58 95% queue length 0.56 3.31 Control Delay 14.6 34.9 LDS D D Approach Delay 34.9 Approach LOS D MENORES AVENUE/DOUGLAS ROAD INTERSECTION ANALYSIS URBANEA August 22, 2004 Page MA-6 • • HCS2000: Unsignalized Intersections Release 4.1d TWO-WAY STOP CONTROL SUMMARY Analyst: J. AHLSTEDT Agency/Co.: Date Performed: 8/22/04 Analysis Tirne Period: PM PEAK HOUR Intersection: DRMA Jurisdiction: Units: U. S. Customary Analysis Year: FUTURE WITH PROJECT Project ID: URBADIEA East/West Street: MENORES AVE North/South Street: DOUGLAS ROAD Intersection Orientation: NS Study period (hrs): 0.25 Vehicle Volumes and Adjustments Major Street: Approach Northbound Southbound Movement 1 2 3 14 5 6 L T R I L T R Volume 162 1329 1380 61 Peak -Hour Factor, PHF 0.71 0.96 0.93 0.76 Hourly Flow Rate, HFR 228 1384 1483 80 Percent Heavy Vehicles 0 -- -- - Median Type/Storage TWLTL / 1 RT Channelized? Lanes 1 2 2 0 Configuration L T T TR Upstream Signal? No No Minor Street: Approach Westbound Eastbound Movement 7 8 9 i 10 11 12 L T R I L T R Volume Peak Hour Factor, PHF Hourly Flow Rate, HER Percent Heavy Vehicles Percent Grade (%) Flared Approach: Exists?/Storage Lanes Configuration 0 15 73 0.63 0.80 23 91 0 0 0 No 0 0 LR Delay, Queue Length, and Level of Service Approach NB S3 Westbound Eastbound Movement 1 4 17 8 9 I 10 11 12 Lane Config L I I LR v (vph) 228 114 C(m) (vnh) 428 191 v/c 0.53 0.60 95% queue length 3.05 3.31 Control Delay 22.6 48.4 LOS C E Approach Delay 48.4 Approach LOS E MENORES AVENUE/DOUGLAS ROAD INTERSECTION ANALYSIS URBANEA August 22, 2004 Page MA-7 • HCS2000: Unsignalized intersections Release 4,1d TWO-WAY STOP CONTROL SUMMARY Analyst: J. AHLSTEDT Agency/Co.: Date Performed: 8/22/04 Analysis Time Period: AM PEAK HOUR Intersection: DRMA Jurisdiction: Units: U. S. Customary Analysis Year: FUTURE WITH PROJECT Project ID: URSANEA - PEAK SEASON East/West Street: MENORES AVE North/South Street: DOUGLAS ROAD Intersection Orientation: NS Study period (hrs): 0.25 Vehicle Volumes and Adjustments Major Street: Approach Northbound Southbound Movement 1 2 3 14 5 6 L T R I L T R Volume 60 1199 1430 41 Peak -Hour Factor, PHF 0.81 0.98 0.94 0,84 Hourly Flow Rate, HFR 74 1223 1521 48 Percent Heavy Vehicles 0 -- - -- Median Type/Storage TWLTL / 1 RT Channelized? Lanes 1 2 2 0 Configuration L T T TR Upstream Signal? No No Minor Street: Approach Westbound Eastbound Movement 7 8 9 1 10 11 12 L T t I L T R Volume Peak Hour Factor, PHF Hourly Flow Rate, HFR Percent Heavy Vehicles Percent Grade (a) Flared Approach: Exists?/Storage Lanes Configuration 0 20 96 0.79 0.70 25 137 0 0 0 No 0 0 LR Delay, Queue Length, and Level of Service Approach NB SB Westbound Eastbound Movement 1 4 17 8 9 I 10 11 12 Lane Config L 1 1 LR v (vph) 74 162 C(m) (vph) 426 260 v/c 0.17 0.62 95% queue length 0.62 3.79 Control Delay 15.2 39.3 LOS C E Approach Delay 39.3 Approach LOS E MENORES AVENUE/DOUGLAS ROAD INTERSECTION ANALYSIS URBANEA August 22, 2004 Page MA-8 • HCS2000: Unsignalized intersections Release 4.1d TWO-WAY STOP CONTROL SUJMMAR`! Analyst: J. AHLSTEDT Agency/Co.: Date Performed: 8/22/04 Analysis Time Period: PM PEAK HOUR Intersection: DRMA Jurisdiction: Units: U. S. Customary Analysis Year: FUTURE WITH PROJECT Project ID: URBANEA - PEAK SEASON East/West Street: MENORES AVE North/South Street: DOUGLAS ROAD Intersection Orientation: NS Study period (hrs): 0.25 Vehicle Volumes and Adjustments Major Street: Approach Northbound Southbound Movement 1 2 3 1 4 5 6 L T R 1 L T R Volume 167 1369 1421 63 Peak -Hour Factor, PHF 0.71 0.96 0.93 0.76 Hourly Flow Rate, HER 235 1426 1527 82 Percent Heavy Vehicles 0 -- -- -- Median Type/Storage TWLTL / 1 RT Channelized? Lanes 1 2 2 0 Configuration L T T TR Upstream Signal? No No Minor Street: Approach Westbound Eastbound Movement 7 8 9 1 10 11 12 L T R I L T R Volume Peak Hour Factor, PHF Hourly Flow Rate, HFR Percent Heavy Vehicles Percent Grade (%) Flared Approach: Exists?/Storage Lanes Configuration 0 15 75 0.63 0.80 23 93 0 0 0 No 0 0 LR Delay, Queue Length, and Level of Service Approach NB SS Westbound Eastbound Movement 1 4 1 7 8 9 1 10 11 12 Lane Config L 1 ( LR v (vph) 235 116 C(m) (vph) 411 179 v/c 0.57 0.65 95 o queue length 3.46 3.74 Control Delay 24.8 56.1 LOS C F Approach Delay 56.1 Approach LOS F MENORES AVENUE/DOUGLAS ROAD INTERSECTION ANALYSIS URBANEA August 22, 2004 Page MA-9