Stantec Consulting Ltd. 300W-675 Cochrane Drive, Markham ON L3R 0B8

Transcription

1 Stantec Consulting Ltd. 300W-675 Cochrane Drive, Markham ON L3R 0B8 September 14, 2016 File: Attention: Lin Rogers, P. Eng. Corporation of the Town of Oakville 1225 Trafalgar Road Oakville, ON L6H 0H3 Dear Lin Rogers, 1.0 Introduction This objective of this letter is to provide confirmation that the conclusions and recommendations of the August 2015 Traffic Impact Study Report Graydon Banning Development, TIS prepared by Stantec Consulting Ltd. have not changed following the inclusion of the new ownership for a parcel of land contained on the overall site. 2.0 Background The subject lands for the development were owned jointly by Mattamy Homes Ltd. and by Shevchenko. The latter parcel previously owned by Shevchenko was purchased by Martillac Estates Inc. (c/o Treasure Hill). Subsequently, the new ownership has provided a revised site plan for proposed development units on this parcel of land. The previous site plan and the revised site plan are illustrated in Figure 1 and Figure 2, respectively. It is noted that the section of land that has been revised was previously named Dundas Urban Core and 266 apartment units were to be developed. The revised lands will now contain 29 single-family detached units and potentially up to 100 condominium townhouse units. 3.0 Trip Generation The difference in peak hour site generated trips as a result of the minor site plan change on the subject parcel of land is detailed in Table 1. Specifically, the lands are outlined in red on Figure 2. It should be noted that site trip generation estimates from the August 2015 Study are based on information contained in the Institute of Transportation Engineer s (ITE) publication Trip Generation Manual (9 th Edition, 2012) for the Apartment land use. The new site trip generation estimates for the revised parcel are generated using land use codes from the same manual. It is noted that the 9 th edition of the trip generation manual is the latest available.

2 September 14, 2016 Lin Rogers, P. Eng. Page 2 of 4 The new land owner has indicated that within the 1.85 ha Condominium Block, there is the potential to develop up to 100 condominium townhouse units. To be conservative, we have assumed that a total of 150 units would be developed. Table 1 Comparison of Site Trip Generation Peak Hour Trips Study Land Use Units AM Peak Hour PM Peak Hour In Out Total 4 In Out Total August Apartment Total Single-Family Detached Addendum Condominium/Townhouse Total Difference Apartment LUC #220, 9 th Edition; 2 Single-Family Detached LUC #210, 9 th Edition; 3 Residential Condominium/Townhouse LUC #230, 9 th Edition; 4 Trip Formulae were utilized to approximate trips; Based on the revised site plan, a reduction of 33 vehicle trips is estimated during the a.m. peak hour. During the p.m. peak hour a reduction of 46 vehicle trips is estimated in comparison to the site trips generated for the previously proposed land use. With this change in site trip generation, albeit, a reduction of site generated trips will result in a positive net benefit to the traffic operations of the adjacent intersections. It can be concluded that the reduction in site generated traffic will have a negligible effect on the traffic analyses. 4.0 Traffic Volumes The adjacent study area intersections volumes for the 2025 future total traffic scenario are compared with the change in site traffic at the subject parcel of land as shown in Table 2. The same distribution and assignments are utilized as in the August 2015 Study.

3 September 14, 2016 Lin Rogers, P. Eng. Page 3 of 4 Intersection Table 2 Volume Comparison (Martillac Estates Inc. (c/o Treasure Hill) vs. Shevchenko) Intersection Overall Entering Future Total Traffic 2025 Martillac Estates 1 AM Peak Hour Shevchenko 2 + / - (%Diff) Martillac Estates 1 PM Peak Hour Shevchenko 2 + / - (%Diff) William Halton Parkway/ Proudfoot Trail William Halton Parkway/ Site Access Dundas Street W/ Proudfoot Trail Dundas Street W/ Fourth Line 2,389 2,392-3 (-0.1%) 2,382 2,390-8 (-0.3%) 5,646 5, (-0.5%) 5,347 5, (-0.2%) 2,766 2,770-4 (-0.1%) 2,752 2, (-0.4%) 6,916 6, (-0.5%) 6,535 6, (-0.3%) Overall Study Area 15,764 15, (-0.3%) (1) New development (2) Previous development 18,969 19, (-0.4%) The change in the amount of traffic due to the land use changes on the subject parcel of land is minimal. The difference of total entering volumes at the study area intersections results in changes of less than 1%. 5.0 Conclusions Based on the preceding review and analysis, the following conclusions are reached. a) As a result of the land use changes, there is a reduction in trip generation for the subject parcel of land compared to the previously proposed land use in the August 2015 Traffic Impact Study (TIS) Report. b) Given the minimal changes in the site trip generation, the conclusions and recommendations from the August 2015 TIS remain valid.

4 September 14, 2016 Lin Rogers, P. Eng. Page 4 of 4 Regards, STANTEC CONSULTING LTD. Adrian Soo, P. Eng. Transportation Engineer Phone: (905) Adrian.Soo@stantec.com Attachment: Figure 1, Figure 2, Graydon Banning Development TIS August 2015 c. Joran Weiner, Francois Tomeo, Nathan Jamieson

5 N N.T.S. Figure 1 Previous Site Plan Shevchenko Parcel

6 N N.T.S. Figure 2 Revised Site Plan Martillac Estates Inc. (c/o Treasure Hill) Parcel