NATIONAL MERIT | MÉRITE NATIONAL Utility repair and emergency access is integrated utilities and root zones. * * Increase both the number and size Grow large-canopy trees with a 40+ year life span and 40cm diameter at breast height * * * Examine and analyze urban forestry practices for eight North American municipalities with similar climate and density Provide cost-effective recommendations Test proposed methods in utility installation and repair scenarios * Plant fewer trees with greater soil volu hardware in open planters where spac Report includes analysis of urban forestry practices for eight North American municipalities with similar climate and density Informed the Best Practices Manual TREE PLANTING SOLUTIONS Toronto * * * Streetscapes are harsh environments for trees Many do not survive or grow to a large canopy size In addition to providing adequate soil v components were recommended. Mulc and a root zone ID marker were discus selection, recommended species, insta report and speciﬁcations. Tree spacing recommended 10.0m A surface rainwater harvesting system was designed that collects and distributes water ﬂowing across the paving surface. Water slopes down int a rill along the curb and falls into a dra inlet. Irrigation pipes connected to the inlet catch basin distribute the water evenly across the top of the soil under the paving. Open planter 14.0m wide with 0.2 wide curbs. Total width 14.8m Tree spacing recommended 10.0m Tree spacing recommended 10.0m 6.0m Open planter 14.0m wide with 0.2 wide walls Total width 14.8m Tree spacing recommended 10.0m Tree spacing recommended 10.0m 6.0m Mature urban street trees begin with he suitability list was developed that is sp was designed for local conditions and Pedestrian clearway min. 2.1m (recommended) RESEARCH | RECHERCHE CLIENT | PROPRIÉTAIRE CITY OF TORONTO FIRM | FIRME DTAH email@example.com JURY COMMENT | COMMENTAIRE DU JURY : A well-laid-out guideline from principal to implementation, incorporating details and specifications. Every municipality should be familiar with the concepts. | Un guide bien pensé qui couvre tout en incluant des détails et des fiches techniques. Toute municipalité devrait se familiariser avec ces concepts. 44 LANDSCAPES PAYSAGES EN_ When the City of Toronto commissioned DTAH to examine municipal precedents for growing large street trees in sidewalks, DTAH brought urban forestry expert James Urban together with landscape architects, arboriculturists and engineers to produce this exemplary manual. The manual sets a new bar for tree planting, clearly linking tree health and longevity with soil volume and providing detailed cost-efficient options to achieve the target 20 to 30 cubic metres of soil per tree within the confines of a city sidewalk. The project began with analysis of urban forestry practices in Toronto and eight North American municipalities with similar climate and density. This research informed the manual's guiding principles and its detailed descriptions of three proposed construction methods (including specifications for rainwater harvesting and horticultural needs). Since tree planting must often be integrated with utilities, structural concrete slabs or soil cells accommodate enough soil under the sidewalk to grow trees for 40+ years. The manual also considers utility repair: it documents demonstration projects Landscape Architect: DTAH Project Team: | ARUP | James Urban - Urban Trees + Soils | Urban Forest Innovations Inc.