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Internal Capture Trips

Internal Capture Trips. Some Developments Are So Large and Diverse That Trips Are Served Internally. Development Boundary. Work. Home. Shopping. Studies Have Shown That Internal Capture Rates Have Not Been As High As Expected by Their Developers. Mixed-Use Developments.

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Internal Capture Trips

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  1. Internal Capture Trips • Some Developments Are So Large and Diverse That Trips Are Served Internally DevelopmentBoundary Work Home Shopping Studies Have Shown That Internal Capture Rates Have Not Been As High As Expected by Their Developers

  2. Mixed-Use Developments • Developments that contain two or more land use components • Trip generation is calculated separately for each land use component • Total development trip generation (external + internal) is determined by summing components

  3. Internal Capture Considerations • Residential and employment centers should be compatible (with respect to income levels) to allow internal capture • On-site employment may not attract work trips from on-site homes for several years • Remote projects may have higher internal capture • Trips that cross or use the public road system cannot be subtracted with the internaltrip component

  4. Trip Internalization • The ITE Handbook provides a worksheet for multi-use development trip generation and internal capture summary. (page 103 6th edition.)

  5. Trip Internalization • The ITE Handbook also provides typical demand rates for trip origins and destinations. (page 87-88 March 2001 edition.)

  6. Think of this as the “push”

  7. Think of this as the “pull”

  8. Trip Internalization • Note: Several land uses in the 6th edition retail classification (800-899) have been reclassified as ‘Services’ in the 7th edition. These land uses include banks, restaurants, and service stations.

  9. Trip Internalization • Problem #4 • Using the land uses from problems 1 - 3 and the trip origins/ destination rate from the ITE Handbook, what is the internal capture rate of the following development: • a 200,000 f2 Shopping Center (ITE #820) • a 120,000 f2 Office (ITE #710) • a 200 f2 Single Family Home (ITE #221)

  10. Shopping Center 820 200,000 f2 Low Rise Apt General Office 221 720 200 Units 120,000 f2 What is the total number of trips generated? What is the directional distribution of trips? Using table 7.1, What is the percent demand from a retail to an office establishment? (PM Peak) 65% entering, 35% exiting 989 X 0.48 = 475 entering 898 X 0.52 = 514 exiting 475 3% 200 K f2 X 4.945 = 989 514 989 What is the percent demand from a retail to a residential establishment? (PM Peak) What is the percent demand from an office to a retail establishment? (PM Peak) 53% What is the percent demand from a residential to a retail establishment? (PM Peak) 23% 12 53% 3 What is the total number of trips generated? What is the directional distribution of trips? What is the total number of trips generated? What is the directional distribution of trips? 53 65% entering, 35% exiting 124 X 0.65 = 81 entering 124 X 0.35 = 43 exiting 23 200 DU X 0.62 = 124 17% entering, 83% exiting 213 X 0.17 = 36 entering 213 X 0.83 = 177 exiting 1.20 K f2 X 1.775 = 213 0 36 81 177 43 2 213 124 What is the percent demand from an office to a residential establishment? (PM Peak) What is the percent demand from a residential to an office establishment? (PM Peak) 0% 2%

  11. Shopping Center 820 200,000 f2 Low Rise Apt General Office 221 720 200 Units 120,000 f2 Using table 7.2, What is the percent demand to a retail from an office establishment? (PM Peak) 475 2% What is the percent demand to a residential from a retail establishment? (PM Peak) 514 31% 989 9 12 3 2 What is the percent demand to a retail from a residential establishment? (PM Peak) 9% What is the percent demand to an office from a retail establishment? (PM Peak) 53 31 31 23 31% 0 0 36 81 177 43 2 2 213 124 What is the percent demand to an office from a residential establishment? (PM Peak) What is the percent demand to a residential from an office establishment? (PM Peak) 0% 2%

  12. Shopping Center 820 200,000 f2 Low Rise Apt General Office 221 720 200 Units 120,000 f2 How many vehicles are exiting the shopping center to the apartments? How many vehicles are exiting the shopping center to the office? 12% X 514 = 62 3% X 514 = 15 How many vehicles are entering the shopping center from the apartments? How many vehicles are entering the Shopping center from the office? 475 514 9% X 475 = 43 989 2% X 475 = 10 How many vehicles are entering the apartments from the shopping center? How many vehicles are entering the office from the shopping center? 31% X 81 = 25 31% X 36 = 11 How many vehicles are exiting the apartments to the shopping center? 9 43 How many vehicles are exiting the office to shopping center? 10 12 62 3 2 15 53% X 43 = 23 23% X 177 = 41 25 53 23 31 31 23 41 11 0 0 0 0 36 81 177 43 2 2 2 4 213 124 How many vehicles are exiting the office to the apartments? How many vehicles are entering the apartments from the office? 2% X 177 = 4 2% X 81 = 2 How many vehicles are entering the office from the apartments? How many vehicles are exiting the apartments to the shopping center? 0% X 36 = 0 53% X 43 = 23

  13. Shopping Center 820 200,000 f2 Low Rise Apt General Office 221 720 200 Units 120,000 f2 Balance the trips exiting the shopping center and entering the office with the least number of trips. (no more vehicles can enter than can exit.) 15 exiting vs. 11 entering balances to 11 Balance the trips entering the Shopping center and exiting the apartments. 475 46 exiting vs. 23 entering balances to 23 514 989 Balance the trips exiting the shopping center and entering the apartments. 62 exiting vs. 25 entering balances to 25 Balance the trips entering the Shopping Center and exiting the office . 10 exiting vs. 41 entering balances to 10 9 43 2 10 12 62 3 15 25 23 11 10 Balance the trips exiting the office and entering the apartments. Balance the trips entering the office and exiting the apartments. 4 exiting vs. 2 entering balances to 2 0 exiting vs. 0 entering balances to 0 25 53 23 31 31 11 23 41 0 0 0 0 0 81 36 177 43 2 2 2 2 4 213 124

  14. Shopping Center 820 200,000 f2 Low Rise Apt General Office 221 720 200 Units 120,000 f2 Add the balanced trips entering the shopping center Subtract the internal trips from the total trips to calculate the external trips. 10 (from the office) + 23 (from the apartments) = 33 475 442 33 36 478 514 475 - 33 = 442 514 - 36 = 478 898 - 69 = 920 989 69 920 Add the balanced trips exiting the shopping center. 7% 93% Calculate the percent internal and external capture by dividing the total from the sum of Internal / External trips. 11 (to the office) + 25 (to the apartment) = 36 9 43 3 2 10 12 62 15 23 11 10 25 69 / 989 = 7% 920 / 989 = 93% Total the internally captured trips. 25 53 31 11 31 23 12 41 33 entering + 36 exiting = 69 trips Repeat for the additional land uses. 0 0 0 0 0 25 11 36 81 27 54 165 12 20 177 23 43 2 2 2 4 2 23 190 213 74 124 50 11% 40% 89% 60%

  15. Shopping Center 820 200,000 f2 Low Rise Apt General Office 221 720 200 Units 120,000 f2 521 442 25 54 663 478 165 20 1184 920 190 74 1326 989 213 124 Using the information calculated on the tables, enter in the remaining fields for trips Exiting/ Entering from External sources The percent internal capture is calculated by the sum of the internally captured trips divided by the Total Single-Use Trips. 478 475 442 33 478 514 36 442 989 920 69 7% 93% (69 + 23 + 50) / 1326 = 11% 9 43 2 10 12 62 3 15 23 10 11 25 Now copy the values to the summary table on the bottom 25 53 23 31 31 12 41 11 Repeat for the additional land uses. 54 165 0 0 0 0 0 25 11 81 27 54 36 177 165 43 12 23 20 20 4 2 2 2 2 25 190 50 74 213 23 124 11% 40% 89% 60% 11%

  16. TIPS for Florida TIPS Demonstration Internal Capture Pass By

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