1 / 25

Pilot Testing on SHRP 2 C11 Development of Tools for Assessing Wider Economic Benefits

Pilot Testing on SHRP 2 C11 Development of Tools for Assessing Wider Economic Benefits. Project Study and Drafted Testing Plan. Outline. Methodology Project Products – Excel Based T ool Drafted Testing P lan. Methodology. Traditional transportation benefits

rowdy
Download Presentation

Pilot Testing on SHRP 2 C11 Development of Tools for Assessing Wider Economic Benefits

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Pilot Testing on SHRP 2 C11Development of Tools for Assessing Wider Economic Benefits Project Study and Drafted Testing Plan

  2. Outline • Methodology • Project Products – Excel Based Tool • Drafted Testing Plan

  3. Methodology • Traditional transportation benefits • Measurement of transportation efficiency – represented in terms of direct effects on travel time, vehicle operating cost and collision incident cost • Traveler or user benefits • Broader measures – environmental and social effects • Wider Transportation Benefits • How transportation improvement project can benefit other parties besides just the traveler • Broader indirect effects on the economy: savings in delivery costs and household transportation costs, adding jobs, wages or value (Gross Domestic Product)

  4. Methodology • Project Objectives • Provide a set of four tools for transportation impact assessment that planners can use to assess the impacts of transportation capacity projects on conditions that directly affect wider economic benefits. • Travel time reliability • Market access • Intermodal connectivity, and • An accounting system for incorporating the above three metrics into economic benefit and economic impact analyses

  5. Methodology • Travel Time Reliability Effects • Transportation projects • Reduce congestion -> • Reduce average travel time / traffic incidents-> • Reduce length of traffic backups that result from incidents -> • Less uncertainty in freight pickup and drop-off time -> • Reduction in inventories (safety stocks) -> • More centralized warehousing and delivery processes • Transportation projects • Reliability Improvement -> • Reduce Employee lateness-> • Enable business operations to make more productive use of workers who did show up on time Supply Chain Logistics Benefits Labor Productivity Benefits

  6. Methodology • Market Access • Expand the breadth of destinations that can be served by same-day truck deliveries, or the size of areas from which a business can expect to draw customers and workers • Customer delivery market • Enable scale economies in production and/or delivery processes • Worker labor market • Enable scale economies through better matching of specialized business needs and specialized worker skills • Enable more innovation through greater interaction of complementary firms and their employees Agglomeration Benefits

  7. Methodology • Intermodal Connectivity Effects • Projects enhancing the frequency of service and reducing total time involved for bus/car/truck movements between business locations and intermodal terminals (airports, marine ports, rail terminals or intermodal truck/rail facilities) • Enhance the frequency of air, marine or rail services, or breadth of origins/destinations directly accessible from terminals Faster Movement

  8. Methodology • Factors Affecting Reliability and Access Impact

  9. Products - Travel Time Reliability • Product Input • Basic Analysis Unit – Highway Segments • Not be so long that the characteristics change dramatically along the segment, or be too short that input is burdensome • Freeways: between interchanges • Signalized highways: between signals • Rural highways (non-freeways): 2-5 miles • Traffic Data • Average Annual Daily Traffic (AADT), current • Annual traffic growth rate (%) • Inventory Data • Rout, beginning/ending milepost, highway type, No. of lanes, free flow speed… • Truck Data (%)

  10. Products - Travel Time Reliability • Product Input • Capacity Data (peak capacity) • Alternately • G/C ratio (effective green time/cycle length) • Terrain • Time Horizon • No. of years into the future for which the analysis applies • Analysis Period • Hours of the day (e.g., 6:00 AM to 9:00 AM) • Economic Analysis Data - According to Literatures • Unit cost of travel time, personal ($/hour): default = $19.86 • Unit cost of travel time, commercial ($/hour): default = $36.05 • Reliability Ratio, personal: default = 0.8 • Reliability Ratio, commercial: default = 1.1

  11. Products - Travel Time Reliability • Project Output – Yearly (Current Year and Future Year) • Recurring delay (hours) • Incident delay (hours) • Total delay (hours) • Overall travel time index • 95th percentile travel time index • 80th percentile travel time index • Percent of trips < 45 mph • Percent of trips < 30 mph • Cost of recurring delay • Cost of unreliability • Total congestion cost How to measure??

  12. Products - Travel Time Reliability • Compute Congestion and Reliability Costs • TotalDelayCostVT = TotalEquivalentAnnualWeekdayDelayVT* UnitCostVT • RecurringDelayCostVT = TotalDelayCostVT * (TTI50/TTIe(VT)) • ReliabilityCostVT = TotalDelayCostVT - RecurringDelayCostVT • Costs should be computed separately for each vehicle type (passenger vs. commercial cars) and summed.

  13. Testing – Travel Time Reliability • Data • Location: I-5 JBLM (between interchanges) • Traffic Data (yearly): 2007 – 2012? • Testing • Option 1: • Follow the approaches, test the approaches’ correctness, and provide alternative delay computation methods based on our study • Compare the approaches with literatures • Option 2: • Compare the data with field data (delay cost) • Travel cost (delay -> cost) • Roadway treatment cost • Incident/accident cost (property damage, death?) • Option 3: • Survey with economic expert (is the cost reasonable?)

  14. Products – Accessibility

  15. Products – Accessibility • ERS Typology and Location Quotient for Manufacturing for the Study Area

  16. Products – Accessibility • GIS Mapping of Effective Densities as Measure of Market Access

  17. Testing - Accessibility • Data • Improvements / new built roads • Industry layout • … • Testing • Long term forecast • Can we get the historical data from city planning department? • How to eliminate other factors impact? Such as population growth, commercial center new built, economy growth resulted from other industry development, etc..

  18. Products - Connectivity • Input • Drawn primarily from public data sources, including: • Level of activity of a terminal - tonnage or containers for freight or trips for passenger modes • Value of goods moved (for freight) - measured in value per ton or value per container • Number of locations served by the facility - how many other unique geographic areas (domestic and international) this terminal connects to

  19. Products - Connectivity • Calculation for Freight and Passenger Index • Freight connectivity index = Tons of freight X Average value per ton X Number of distinct locations served • Freight connectivity index = Containers of freight X Average value per container X Number of distinct locations served • Passenger connectivity Index = Number of passengers X Number of distinct locations served

  20. Product - Connectivity • Data Source • Marine Freight • Total containers and tons arriving and leaving from the port are multiplied by an average value per ton and average value per container estimated from Freight Analysis Framework (FAF) data • Air Passenger • Use the US Department of Transportation’s T-100 Domestic and International Air Carrier Data, available from the Bureau of Transportation Statistics (BTS) to determine the number of passengers arriving or leaving the airport • Air Cargo • Total freight tons is multiplied by the number of origins and destinations and an average value per ton to estimate the inde

  21. Products - Connectivity • Input • Intermodal Facility (Type, name, number of annual containers for rail freight intermodal facilities) • Improvement • Distance of improvement • Number of trucks within study area (annual) • Hours saved per truck (a fraction of an hour) • Value per truck hour for freight facilities – crew cost + freight logistics cost • Value per passenger • Fraction of user using the improved segment to access the facility • Default fraction factor: the further away from the intermodal facility the improvement is, the less impact it will have on the intermodal facility

  22. Products - Connectivity • Data Source • Freight Rail • Estimate activity using the annual container lift capacity of the terminal. • Passenger Rail • Focus on Amtrak intercity rail terminals. Total tickets and number of locations served are used to estimate an index for these facilities

  23. Products - Connectivity • Output • Value of activity • Facility connectivity raw value • Relative facility connectivity index • Total value of truck activity saved • Total value of time savings for facility • Weighted connectivity ($)

  24. Testing - Connectivity • Data • I-5 JBLM ? (between interchanges) • Freight and Passenger Car Data (Traffic Analysis Zones in Puget Sound Area) • Testing • Option 1: • Follow the approaches, test the approaches’ correctness • Compare the approaches with literatures • Option 2: • Compare the data with field data (freight cost savings/ passenger cost savings) using TAZs in Puget Sound Area • Option 3: • Survey with economic expert (is the cost reasonable?)

  25. Products – Overall Benefits • Passenger Trips and Commercial Trips, Respectively - Comparison between built and no-built scenarios • Travel time - vehicle hours, vehicle miles • Safety - crash reduction • Induced Trips • Cost of unreliability • Accessible employment • Weighted connectivity

More Related