1 A Sharper Saw? Using Advanced Planning Tools and Data to Improve Your Planning Efforts Finding the Right Saw, Curbfront Case Studies Jill Capelli, P.E. Associate Kimley-Horn and Associates, Inc. jill.capelli@kimley-horn.com December 11, 2013 Washington, DC
Today s Discussion Level of Detail Summary Curbfront Case Studies ORD OMA PHX Tools Used Input Results Benefits So What? Source: home.howstuffworks.com Finding the Right Saw 2
Level of Detail Source: Kimley-Horn and Associates, Inc. 3
4 Level of Detail Chain Saw ORD OMA Crosscut Saw Source: home.howstuffworks.com PHX Chisel Source: www.lowes.com Source: cdn.toolstation.com
ORD, Project Summary Source: http://www.oharenoise.org/images/maps/oharefullbuildout.png 5
ORD, Tool Selection = = /60 = Source: ftp://public-ftp.agl.faa.gov 6
ORD, Input/Results Input Data Peak hour demand (vehicles), by vehicle type Vehicle dwell time Multiple stops, if applicable Vehicle length Curbfront length Percent double parked Results Provided Peak hour demand (minutes, foot-minutes, feet) Percent utilized 7
ORD, Benefits Benefits Minimum input required Quick analysis of required curbfront length Allows for easy comparison between curbfront alternatives Disadvantages Limited results Isolated analysis Source: Kimley-Horn and Associates, Inc. 8
OMA, Project Summary Source: HOK 9
OMA, Tool Selection Curbfront areas Dwell lanes (parked cars) Through lanes (moving cars) Dwell lane capacity function of Curbfront length Average dwell time Through lane capacity function of Travel speeds Impacted by dwell lane activity Pedestrian factors Source: Kimley-Horn and Associates, Inc. 10
OMA, Tool Selection Source: http://www.trb.org/main/blurbs/164469.aspx 11
OMA, Tool Selection Why QATAR (Quick Analysis Tool for Airport Roadways) Analyzes changes in traffic volumes, passenger activity, vehicle mix, curbfront allocation, and dwell times Compares vehicles attempting to stop simultaneously in each curbfront zone with the capacity (number of available spaces) Compares bypass traffic volumes with capacity of bypass lanes Determines LOS for each curbfront zone after determining interaction between the curbfront zone and bypass section; poorest LOS governs Helps identify whether solutions should focus on loading/unloading activity or bypass activity 12
13 OMA, Tool Selection General Characteristics: lanes and factors Detailed Results by Zone Color Coded LOS Vehicle Characteristics: length, dwell Zone Characteristics: length, volumes by mode Demands and LOS results Source: Kimley-Horn and Associates, Inc.
14 OMA, Tool Selection Source: ACRP 25, Jacobs Consultancy Source: Kimley-Horn and Associates, Inc. Source: OMA South Ticketing Bag Claim North Ticketing Source: Kimley-Horn and Associates, Inc.
OMA, Inputs/Results Inputs Curbfront geometry Hourly traffic volumes Through versus curbing volume Vehicle mix* Dwell times* Vehicle Length* Adjustment factors Propensity of vehicles to double park* Crosswalks Regional *default values available Results Level of service (graphical and tabular) Curbfont utilization ratio by zone Volume/capacity ratio for thru lanes, by zone 15
OMA, Benefits Benefits Does not require large amount of data Tests range of physical, operational, and demand management strategies Rapidly tests numerous strategies and combinations of strategies Displays analytical and graphical results in an easily understood format Can be used to screen multiple alternatives to identify those that might require refined analysis Disadvantages Pedestrian analysis limited to factors No cumulative impacts of multiple peak hours 16
17 PHX, Project Summary Source: Kimley-Horn and Associates, Inc.
PHX, Tool Selection Advanced Land Transportation Performance Simulation Integrated system that models vehicles, transit, and pedestrians Initially developed over 30 years ago, with continuous project updates Source: Kimley-Horn and Associates, Inc. 18
19 PHX Tool Selection Source: Kimley-Horn and Associates, Inc.
PHX, Input Trip Generation Flight schedule Population characteristics Time distribution Trip Distribution OD Matrix Mode Choice Vehicle occupancy/visitor ratios Dwell times Vehicle lengths and behavior Route Assignment Competing routes and percentages Curbfront and approach geometry Traffic counts (for calibration) Input Data and Assumptions Memorandum 20
PHX, Results Statistical Metrics Travel times Vehicle delay Waiting times (passengers at curbfront) Pedestrian accumulation (passengers at curbfront) Bus fleet size requirements (busing operations) Queue length and duration Unmet demand Source: Kimley-Horn and Associates, Inc. 21
22 PHX, Benefits Alternative Input/Assumption Remove T4 UL CTX Machines T2 & T3 Employees to Outlying Lots Curbfront Redistribution East Stage n Go Lot Photo Radar System T3 & T4 Garage GTCs Additional T3 Lanes Expanded East Economy Lot East Side Employee Parking Expansion Additional West Side Public Parking Security Control Plazas Parking Revenue Control Plazas Parking Revenue Control Plazas with Toll Alt Description 1 Existing Conditions 1A Existing Conditions Modified X 2 Near Term Operational Enhancements X X X X X 3 Additional T3 Lanes X X X X X X X 4 T3 & T4 GTCs X X X X X X X X X X 5 Security Plazas X X X X X X X X X X X 6 Parking Revenue Control Plazas X X X X X X X X X X X 7 Parking Revenue Plazas with Toll X X X X X X X X X X X 8 Automated Train X X X X X X X X X 9 GTCs for Commercial Vehicles X X X X X X X X X 10 Automated Train with GTCs X X X X X X X X X X 11 Cul-de-sac between T3 & T4 X X X X X X X X X X X 12 Cul-de-sac east of T4 X X X X X X X X X X X West Terminal (1) Cul-de-sac Automated Train East and West GTCs Source: Kimley-Horn and Associates, Inc.
PHX, Benefits Benefits Several measures of effectiveness Stakeholder consensus Unique LOS metric to communicate across broad audience Creative use of modeling tools to evaluate irregular operations Planning tools can be effectively used during the design process Disadvantages Significant input data required Calibration takes time 23
So What? How do you decide? Client needs Schedule/budget Available information Goal Getting the right answer for the Client at the right level of effort to meet their needs! 24
25 Questions? Source: Bizarro
26 A Sharper Saw? Using Advanced Planning Tools and Data to Improve Your Planning Efforts Finding the Right Saw, Curbfront Case Studies Jill Capelli, P.E. Associate Kimley-Horn and Associates, Inc. jill.capelli@kimley-horn.com December 11, 2013 Washington, DC