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Transportation Engineering/Operations ♦ Impact Studies ♦ Design Services ♦ Transportation Planning/Forecasting Eastside Office: 11410 NE 124th Street, #691 ♦ Kirkland, WA 98034 ♦ Office (425) 820-1728 ♦ Fax (425) 820-5913 Seattle Office: PO Box 65254 ♦ Seattle, WA 98155 ♦ Office/Fax (206) 361-7333 ♦ Toll Free (888) 220-7333 Transportation Engineering NorthWest, LLC Memorandum DATE: May 1, 2002 TO: Rob Crittenden, P.E. City of Redmond FROM: Jeff Haynie P.E. Transportation Engineering Northwest, LLC RE: RTC – Marriott Hotel Trip Generation TENW Project No. 2178 This memorandum documents the estimated p.m. peak hour trip generation associated with the proposed Marriott Hotel at Redmond Town Center (RTC) as it relates to the overall site and the traffic entitlement for the RTC development. The RTC Marriott Hotel is proposed to include 262 rooms. The number of entitled trips for the RTC site was determined based on the approved master plan for the Redmond Town Center site, as documented in the Redmond Town Center EIS Addendum Appendix C, dated April 1995. The p.m. peak hour trip generation associated with full buildout of the site includes 2,367 net p.m. peak hour trips (see Attachment Based on the approved master plan, the RTC development has mitigated the off-site impacts associated with these trips and is vested to this p.m. peak hour trip level. It should be noted that the 281 p.m. peak hour trips that have been approved and transferred from the RTC West site have not been included in this analysis. The p.m. peak hour trips from the RTC site (including the proposed Bon Marche) with the addition of the Marriott Hotel was determined using the trip generation methodology documented in the Institute of Transportation Engineers (ITE) Trip Generation Manual 6th edition. Reductions to the gross trips were taken to account for both pass-by and internal trips. The pass-by trip percentage used was based on the average pass-by rate determined using building area and adjacent street traffic. As a result, a pass-by rate of 31.2 percent was used. The internal capture rate was conservatively estimated to be 15 percent. It should be noted that Macerich reserves the right to revise the pass-by and internal capture rate for future trip generation estimates associated with the full buildout of the Redmond Town Center site. Based on the ITE trip generation methodology, the RTC site (including the proposed Bon Marche) with the Marriott Hotel is estimated to generate 2,254 net p.m. peak hour trips (860 entering, 1,394 exiting) (see Attachment ---PAGE BREAK--- Transportation Engineering NorthWest, LLC RTC Marriott Hotel May 1, 2002 Page 2 Transportation Engineering/Operations ♦ Impact Studies ♦ Design Services ♦ Transportation Planning/Forecasting Eastside Office: 11410 NE 124th Street, #691 ♦ Kirkland, WA 98034 ♦ Office (425) 820-1728 ♦ Fax (425) 820-5913 Seattle Office: PO Box 65254 ♦ Seattle, WA 98155 ♦ Office/Fax (206) 361-7333 ♦ Toll Free (888) 220-7333 In summary, the net p.m. peak hour trips from the RTC site (including the proposed Bon Marche) with the Marriott Hotel (2,254) is less than the entitled trips for the site (2,367+281). Therefore, the p.m. peak hour trip generation estimated for the Marriott Hotel falls well within the envelope of the entitled and mitigated p.m. peak hour trips. Please call me at (425) 820-1728 if you have any questions regarding the information included in this memorandum. cc: Rick Beason, Macerich Company \RTC Marriott - #2178\Deliverable\RTC Marriott TGEN Memo Final 5-1-02.doc ---PAGE BREAK--- ATTACHMENT A Redmond Town Center Next Phase of Development TENW Project No. 2136 "Approved Land Use" per Redmond Town Center EIS Addendum 10/23/97 - 1,490,000 GLA Land Use Area Units ITE LUC In Out Total In Out Total RETAIL 601,159 GLA 820 1.71 1.71 3.42 1,028 1,029 2,057 Internal Trips 10% 103 103 206 Passby Trips 31% 319 319 638 Subtotal (less internal+passby) = 606 607 1,213 OFFICE (739,341 GLA) 786,742 GFA 710 0.18 0.90 1.08 144 706 850 Internal Trips 15% 22 106 128 Subtotal (less internal) = 122 600 722 BUTLER WALLS Retail 149,500 GLA 820 2.83 2.84 5.67 424 424 848 Internal Trips 10% 43 42 85 Passby Trips 39% 166 165 331 Subtotal (less internal+passby) = 215 217 432 Gross P.M. Peak Hour Trips Generated = 1,596 2,159 3,755 Less Internal Trips = 168 251 419 Less Passby Trips = 485 484 969 Net New P.M. Peak Hour Trips Generated = 943 1,424 2,367 Approved RTC Trips = 2,367 Trips Transferred from RTC West = 281 Total RTC Entitled Trips = 2,648 Trips Generation Rate Trips Generated Peak Peak Marriott TGEN Revised 4-30-02 4/30/2002 ---PAGE BREAK--- ATTACHMENT B Redmond Town Center Next Phase of Development TENW Project No. 2136 Existing Trip Generation + Bon Marche + Marriott Land Use Area Units ITE LUC In Out Total In Out Total EXECUTIVE HOTEL (115,496 GLA) 175 Occupied Rooms 312 0.37 0.25 0.62 65 44 109 Internal Trips 15% 9 7 16 Subtotal (less internal) = 56 37 93 HOTEL (Marriott - 150,000 GLA) 262 Occupied Rooms 310 0.35 0.36 0.71 91 95 186 Internal Trips 15% 14 14 28 Subtotal (less internal) = 77 81 158 RETAIL(with 115k Bon Marche) 635,392 GLA 820 1.61 1.74 3.35 1,021 1,107 2,128 Internal Trips 15% 153 166 319 Passby Trips 1 31.2% 270 294 564 Subtotal (less internal+passby) = 598 647 1,245 OFFICE (681,030 GLA) 724,616 GFA2 710 0.21 1.02 1.23 152 740 892 Internal Trips 15% 23 111 134 Subtotal (less internal) = 129 629 758 Gross P.M. Peak Hour Trips Generated = 1,329 1,986 3,315 Less Internal Trips = 199 298 497 Less Passby Trips = 270 294 564 Net New P.M. Peak Hour Trips Generated = 860 1,394 2,254 Note: 1. Passby trip rate = average of passby rates determined using building area and adjacent street traffic. 2. Office GFA = 1.064 X GLA Trips Generation Rate Trips Generated Peak Peak Marriott TGEN Revised 4-30-02 4/30/2002