Review of Transportation Performance for I-5 Build Concepts AGENDA - PowerPoint PPT Presentation

Review of Transportation Performance for I-5 Build Concepts AGENDA • Purpose • Modeling/Concept Overview • Review of Performance Measures • Break • Review of Traffic Simulation • Next Steps

Modeling/Concept Overview • Modeling work group • Development of post-processed demand volumes- group review • Design refinement based on screening level review of traffic demands

Initial Findings & Design Refinements • Must split SR 500 traffic to mainline and CD • Need to balance access and facility capacity • O-D patterns indicated how to braid ramps in certain cases • Look for opportunities to eliminate short distance trips from the freeway and CD system • Reconsider which ramps merge and which add lanes to the freeway

Review of Performance Measures • Modeling work group selected MOES – Travel Times – Speed – Delay (mainline and ramps) – Queuing – Unserved Demand

- ~ ~ .~ . ~ Average Speed I-5 Northbound - Lombard to Main St. 60 2020 Baseline • - • 2020 Option 4 B • • • • • 2020 Option 6 50 ""*"" 2020 Option 7 Northbound Speed 40 I Main St. (MPH) SR-500 30 • ... ... ... ... ... I -5 20 Columbia River 10 0 Lombard 2:00 PM 2:30 PM 3:00 PM 3:30 PM 4:00 PM 4:30 PM 5:00 PM 5:30 PM 6:00 PM Time

- ~ ~ . - '" . ~ ., .- E-,l . _ Travel Time I-5 Northbound - Lombard to Main St. 25 2020 Baseline - • 2020 Option 4 2020 Option 6 .. ,. ""*"" 2020 Option 7 20 Northbound Travel Times ..... K..lI II.lI 15 (Minutes) Main St. I SR-500 I -5 10 l1li IIlII l1li .. . iIIiI • • • Columbia River 5 0 2:00 PM 2:30 PM 3:00 PM 3:30 PM 4:00 PM 4:30 PM 5:00 PM 5:30 PM 6:00 PM Lombard Time

Average Speed I-5 Southbound - Main St. to Lombard 60 2020 Baseline 2020 Option 4 2020 Option 6 50 2020 Option 7 Southbound Speed 40 Main St. (MPH) SR-500 30 I -5 20 Columbia River 10 0 6:00 AM 6:30 AM 7:00 AM 7:30 AM 8:00 AM 8:30 AM 9:00 AM Lombard Time

Travel Time I-5 Southbound - Main St. to Lombard 20 2020 Baseline 2020 Option 4 18 2020 Option 6 2020 Option 7 16 Southbound Travel Times 14 12 (Minutes) Main St. SR-500 10 I -5 8 6 Columbia River 4 2 0 6:00 AM 6:30 AM 7:00 AM 7:30 AM 8:00 AM 8:30 AM 9:00 AM Lombard Time

On-Ramps Impact I-5 Northbound (PM Peak Hour) Queue Length for Unserved Vehicles (feet) 600 12000 2.00 mile 2020 Baseline 500 10000 2020 Option 4 Unserved Vehicles 2020 Option 6 8000 400 2020 Option 7 300 6000 1.00 mile Per Lane 4000 200 0.50 mile 100 2000 0.25 mile 0 0 I-5 Mainline Start Delta / Columbia ON Mill Plain ON 39th St. / SR-500 ON Denver ON Marine Dr. ON Hayden Is. ON Fourth Plain ON SR-14 ON On-Ramps Locations

On-Ramps Impact I-5 Southbound (AM Peak Hour) Queue Length for Unserved Vehicles (feet) 600 12000 2.00 mile 2020 Baseline 10000 500 2020 Option 4 2020 Option 6 Unserved Vehicles 8000 400 2020 Option 7 6000 300 1.00 mile 4000 200 Per Lane 0.50 mile Per Lane 2000 100 0.25 mile 0 0 I-5 Mainline Start Mill Plain ON 39th Street ON Fourth Plain ON City Center ON Hayden Is. ON Marine Dr. ON Denver / Delta ON Columbia ON SR-500 ON SR-14 ON On-Ramps Locations

Baseline Average Speed Southbound (AM Peak Hour) Average Speed < 5 mph 5 - 35 mph 35 - 55 mph > 55 mph SR - 14

Baseline Average Speed Southbound (AM Peak Hour) Average Speed SR - 500 < 5 mph 5 - 35 mph 35 - 55 mph > 55 mph

Option 4 Average Speed Southbound (AM Peak Hour) Average Speed < 5 mph 5 - 35 mph 35 - 55 mph > 55 mph SR - 14

Option 4 Average Speed Southbound 6:00-7:00 AM (Peak Hour) SR - 500 Average Speed < 5 mph 5 - 35 mph 35 - 55 mph > 55 mph

Option 4 Average Speed Southbound 7:00-8:00 AM (Peak Hour) SR - 500 SR - 500 Average Speed < 5 mph 5 - 35 mph 35 - 55 mph > 55 mph

Option 4 Average Speed Southbound 8:00-9:00 AM (Peak Hour) SR - 500 Average Speed < 5 mph 5 - 35 mph 35 - 55 mph > 55 mph

Baseline Average Speed Northbound (PM Peak Hour) Hayden Island Average Speed < 5 mph 5 - 35 mph 35 - 55 mph > 55 mph

Baseline Average Speed Northbound (PM Peak Hour) Average Speed < 5 mph 5 - 35 mph 35 - 55 mph > 55 mph Columbia

Option 4 Average Speed Northbound (PM Peak Hour) Hayden Average Speed Island < 5 mph 5 - 35 mph 35 - 55 mph > 55 mph

Option 4 Average Speed Northbound (PM Peak Hour) Average Speed < 5 mph 5 - 35 mph 35 - 55 mph > 55 mph Columbia

Basic VISSIM Model Parameters • HOV % provided by Metro (30% NB, 27% SB) • HOV operation hours (7-8 am SB, 3-6 pm NB) • Ramp meter rates provided by Metro • Ramp meter hours (6-9 am SB, 3:30-6 pm NB) • Origin-Destination patterns provided by Metro – Specific to SOV, HOV, & Truck • Grades of + 4% provided by design team

Basic VISSIM Model Parameters • Truck % provided by Metro – 7% on mainline NB and SB – 2% for NB on-ramps during peak – SB Columbia Blvd. on-ramp at 15% – SB Marine Drive and Victory Blvd. on-ramps at 10% • We did not model off-peak operations • Model corridor focused to Bridge Influence Area (BIA)- Columbia Blvd. to SR 500