Advancing Transportation Choices in Des Moines MPO Environmental Roundtable January 9, 2018 Presented by Jennifer McCoy, PE, PTOE City Traffic Engineer
Agenda Des Moines Area Transportation Planning Connect Downtown E Grand Pilot Project
Transportation Planning Efforts The Tomorrow Plan Mobilizing Tomorrow Bicycle and Trail Master Plan PlanDSM GuideDSM DART Forward 2035 Update Neighborhood Plans MoveDSM ITS Master Plan Step it Up DSM Connect Downtown
Public Health
Common Thread : Multi-modal Transportation
Connect Downtown
Design Concepts Transportation plays a key role in an exciting and healthy living and working environment when it considers more than moving vehicular traffic. The concept of a multi-modal transportation system is one that offers a range of transportation choices and supports mixed land uses along corridors - Plan DSM Transportation Section Street Design Elements being considered for Downtown Fewer / Narrower Traffic Lanes 1-way to 2-way Conversions Crosswalk Improvements Protected Bike Lanes / Intersections Transit Lanes Parking Changes Traffic Signal Removal
Existing Streets
Existing Bike Network
Engagement Timeline (to date) May 2016 November 2016 June 2017 August 2017 December 2017 Study kickoff / Traffic Counts 1 st Round of Public Input Meetings 2 nd Round of Public Input Meetings Open Street Event (E Grand Pilot Project) Council recommended inclusion as part of MoveDSM Meetings / Coordination Individual Business Owners (E Grand Pilot Project) Historic East Village Association DM Transportation Safety Committee DM Bicycle Collective DM Public Works (Infrastructure / Snow Removal) DM Police / Fire Department DART Des Moines MPO Nelson/Nygaard (Connect Downtown consultant) Sam Schwartz (DM Transportation Master Plan consultant) City of Cedar Rapids State of Iowa Capitol Planning Commission Operation Downtown
Issues / Opportunities
Proposed Street Changes
Proposed Bike Plan
Proposed Parking Changes
Traffic Modeling Process Traffic Model Purpose Confirm feasibility of the Proposed Street Changes (Vehicular Point of View) Identify probable changes in delay / speeds / travel times Identify potential trouble spots for further detailed study when projects move ahead to design Traffic Model Function Dynamic route choice for vehicles based on available options Traffic Model Inputs Des Moines MPO TransCAD Regional Model Information Supplemental Traffic Counts for Verification / Calibration Scenarios Modeled AM / Mid Day / PM peak periods (2 hours each) Existing 2030 No-Build 2030 Full Build (4-7% Ped/Bike Mode Share for certain trips)
Traffic Modeling
System Traffic Modeling Results Scenario Demand (Vehicles) Avg. Speed (MPH) AM PEAK HOUR Avg. Delay (Seconds) Existing 84,531 22.8 95.2 2030 No-Build 96,867 20.3 113.0 2030 Full Build 91,333 15.8 185.8 + 1.2 min Mid Day PEAK HOUR Existing 65,020 27.7 62.9 2030 No-Build 72,185 27.5 62.3 2030 Full Build 70,402 27.0 65.3 + 3 sec PM PEAK HOUR Existing 96,183 23.5 95.3 2030 No-Build 110,022 23.2 90.5 2030 Full Build 105,122 20.8 115.8 + 25 sec
Next Steps Implementation Plan & Funding Discussion Dec 2017 2019 CIP Planning E Grand Pilot Project Permanent Staffing / Operating Budgets Incremental increases over next several years to maintain new improvements (Field Staff / Materials) Ped / Bike Coordinator Jeff Wiggins Complete Streets Oversight (Transportation Safety Committee)
East Grand Avenue Pilot Project PILOT PROJECT
E Grand Ave Pilot Project Connect Downtown Pilot Project Balances safety / operation between Pedestrians, Bicyclists, Transit, and Vehicles Supports Goals of PlanDSM / GuideDSM Good opportunity with Bridge Out Project Development Connect Downtown Consultant Roadway Sections / Concepts City Engineering Department - Design City / Connect Downtown Team Engagement PUBLIC EDUCATION Construction Public Engagement during Pilot ( 1 year)
E Grand Pilot Project Location Map
E Grand Crash History 2012-2016
E Grand Complete Street Pilot Project Design Elements Two travel lanes Parking protected bike lanes / Green Conflict Zones Islands (Sight Distance / Shorter Pedestrian Crossings) Paint / Vertical Delineators (Pilot) Bus Stops Chicago Example
E Grand Complete Street Pilot Project Design Elements Two travel lanes Parking protected bike lanes / Green Conflict Zones Islands (Sight Distance / Shorter Pedestrian Crossings) Hotel Loading Zone Paint / Vertical Delineators (Pilot) Bus Stops Fire Department Aerial Truck Needs Before/After
E Grand Complete Street Pilot Project
E Grand Complete Street Pilot Project Costs Pilot Cost = $185,000 Funding Streetscape Improvements (ST-40) Existing Marking Removal / Fog Seal Regular Traffic Paint (Not Durable) Minor concrete changes (Curb Ramps / Islands) Parking Meter Additions / Relocation (by City) No Landscaping (to be completed w/ future Streetscape Project) Pilot Project Maintenance Costs Annual Paint / Delineators (contractor provided) = ~ $50,000 Permanent Improvements Cost Estimate = $475,000 - $525,000 Concrete Islands, traffic signal mast arm extensions, curb ramp relocations, durable markings, etc On-going maintenance (Painting)
E Grand Complete Street Public Education
E Grand Complete Street Open Street Event
C O N S T R U C T I O N
Public Engagement
Lessons Learned (so far)
Performance Metrics Engagement / Evaluation / Data Collection During Pilot Number of Injury crashes Corner radii / Truck Aprons for Islands Traffic Signal Timing Updates Delivery truck blockage of travel lanes Parking meter usage Emergency Response Time (Fire/EMS) Volume of all modes of travel Speed of vehicular traffic Pedestrian comfort metrics Public Works Operations (sweeping / snow removal)
Contact Information Jennifer McCoy, PE, PTOE City Traffic Engineer (515) 283-4973 jlmccoy@dmgov.org
E Grand Complete Street Pilot Project Connect Downtown Deliverable from Nelson/Nygaard
E Grand Complete Street Pilot Project Connect Downtown Deliverable from Nelson/Nygaard
E Grand Complete Street Parking Changes