{"id":17490,"date":"2011-01-26T14:33:29","date_gmt":"2011-01-26T18:33:29","guid":{"rendered":"http:\/\/spacingtoronto.ca\/?p=17490"},"modified":"2011-01-26T14:34:10","modified_gmt":"2011-01-26T18:34:10","slug":"no-mean-city-building-for-wild-animals","status":"publish","type":"post","link":"https:\/\/spacing.ca\/toronto\/2011\/01\/26\/no-mean-city-building-for-wild-animals\/","title":{"rendered":"NO MEAN CITY: Building for wild animals"},"content":{"rendered":"

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Cross-posted from <\/em>No Mean City,<\/em><\/a> Alex’s personal blog on architecture<\/em><\/p>\n

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Why would a deer cross the road?<\/p>\n

Actually, with their wild habitats cut up by highways, deer, lynx and other forest species cross the road all the time. And it\u2019s dead serious when they are hit by cars and trucks. Such collisions have increased by 50% in the past 15 years.<\/p>\n

To address this issue, the ARC International Wildlife Crossing Structure <\/a>competition drew ideas from distinguished landscape architects, architects, engineers and ecologists for a model highway overpass for wild animals. The Toronto office of Janet Rosenberg and Associates<\/a> was among the finalists.<\/p>\n

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The competition (see video here<\/a>) solicited entries for a specific site in Colorado\u2019s West Vail Pass, where Interstate 70 cuts between two parkland zones. But really this is an ideas exercise: the point is to develop a prototype for such crossings everywhere. \u201cAt its most basic, it\u2019s about reconciling the conflict between roads and wildlife, people and animals,\u201d says the competition adviser Nina Marie Lister, a planning prof at Ryerson University who studies infrastructure.<\/p>\n

Wildlife overpasses already exist: some of the most successful are in Banff National Park, which has 13 of them. But they\u2019re basically road bridges, which are expensive, unnecessarily heavy, and inhospitable to different species – forcing them to converge on a single, narrow path.<\/p>\n

The winner, from Michael van Valkenburgh, suggests a \u201ckit of parts,\u201d made of precast concrete, that can be easily transported, built in different configurations and planted with different \u201chabitat bands.\u201d It\u2019s worth looking at the winning proposal here<\/a>.<\/p>\n

But I want to delve into the Rosenberg submission, which is a fascinating piece of cross-disciplinary design. I\u2019d encourage you to check it out here<\/a>.<\/p>\n

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<\/a>Rosenberg\u2019s design does some of the same things as the winner. Its structure is modular and adaptable to different sites; it supplies different routes for wildlife \u2013 three bands at each end, allowing nine different routes across. But it adds a couple of interesting notes, partly thanks to input from the animal researcher Temple Grandin.<\/p>\n

Working with the engineers at Blackwell Bowick<\/a>, Rosenberg\u2019s office created a modular system of \u201cstrands\u201d from a material called wood-core fiberglass that they say is durable, light and green to produce. The forms they designed \u2013 which are simple, adaptable, and, according to JRALA, very cheap to produce \u2013 are also quite beautiful.<\/p>\n

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The surface would be planted with native species of shrubs, grasses and forbes, all in trays that could be grown in nurseries and dropped into place. The separate strands of the overpass leave gaps that could be planted with native trees.<\/p>\n

Then there’s Grandin’s input, which helped the designers give sensory cues to the animals. Janet Rosenberg quotes Grandin: “An animal’s world is vision, sound, touch, smell. It’s not about language. You have to get into the sensory world in order to understand them.”<\/p>\n

Those sculptural forms along the edge are functional: they are designed to block out engine noise and headlights \u2013 which terrify animals \u2013 where those forces are most potent. The vertical elements also mimic the forms of trees and offer perches for birds. This all creates a visual and sonic environment of tree-like forms, birdsong, and muted road sounds that is welcoming to animals.<\/p>\n

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The use of the colour red is also significant. Large mammals other than us primates apparently don’t see red: they perceive it as grey. So the red blends into the background for the overpass’s animal \u201cclients,\u201d but could make the bridge into an icon as well.<\/p>\n

That raises an interesting tension between form and function. Rosenberg’s office implies that this sort of infrastructure should not have its forms dictated primarily by aesthetics. I would broaden that to include almost all sorts of building. And yet, if the process of designing an effective, inexpensive structure generates something pretty, why not? In fact, Rosenberg suggests that a beautiful overpass can be a sort of billboard that signals to us that we are sharing the road, and the planet.<\/p>\n


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Cross-posted from No Mean City, Alex’s personal blog on architecture Why would a deer cross the road? Actually, with their wild habitats cut up by highways, deer, lynx and other forest species cross the road all the time. And it\u2019s dead serious when they are hit by cars and trucks. Such collisions have increased byContinue reading “NO MEAN CITY: Building for wild animals”<\/span><\/a><\/p>\n","protected":false},"author":4088,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"ngg_post_thumbnail":0,"_ef_editorial_meta_paragraph_assignment":"","_ef_editorial_meta_date_first-draft-date":"","_ef_editorial_meta_checkbox_needs-photo":"","_ef_editorial_meta_number_word-count":"","footnotes":""},"categories":[14],"tags":[6296],"class_list":["post-17490","post","type-post","status-publish","format-standard","hentry","category-spacing","tag-alex"],"acf":[],"yoast_head":"\nNO MEAN CITY: Building for wild animals - Spacing Toronto<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/spacing.ca\/toronto\/2011\/01\/26\/no-mean-city-building-for-wild-animals\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NO MEAN CITY: Building for wild animals - Spacing Toronto\" \/>\n<meta property=\"og:description\" content=\"Cross-posted from No Mean City, Alex’s personal blog on architecture Why would a deer cross the road? 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