Road ecology blog: Wildlife jump-out or escape ramp, SR 260, east of Payson, Arizona, USA.

Wildlife jump-outs or escape ramps are designed to allow animals to escape the fenced road corridor. Animals that get caught in between the fences can escape by walking up the ramp and jumping down to the safe side of the fence. The jump-out or escape ramp should be low enough so that the animals will readily jump down to safety, but they should be high enough to discourage animals from jumping up into the fenced right-of-way. The optimal height likely depends on the target species; there is ongoing research into design questions regarding wildlife jump-outs or escape ramps.

Jump-outs or escape ramps are typically placed in relatively quiet places, a bit further from the road, often with some vegetation. It is hypothesized that this allows the animals to calm down a bit which would then allow them to assess the jump-out better and use it.

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Wildlife jump-out or escape ramp, SR 260, east of Payson, Arizona, USA

Southwest landscapes: Rock formation, near Page, Arizona, USA.

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Rock formation, near Page, Arizona, USA

Road ecology blog: Black-tailed jackrabbit (Lepus californicus) roadkill, near Page, Arizona, USA.

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Black-tailed jackrabbit (Lepus californicus) roadkill, near Page, Arizona, USA

Road ecologist (Marcel Huijser) photographs a road ecologist (Fabrice Ottburg) who photographs a road ecologist (Edgar van der Grift) who photographs a road ecologist (Fernanda Delborga Abra) investigating a roadkilled black-tailed jackrabbit, Arizona, USA.

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Road ecologists gone mad...

Road ecology blog: Inside a multifunctional underpass, SP-225, near Brotas, Brazil.

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Multifunctional underpass, SP-225, near Brotas, Brazil

Road ecology blog: Multifunctional underpass, SP-225, near Brotas, Brazil.

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Multifunctional underpass, SP-225, near Brotas, Brazil

Road ecology blog: Fence and multifunctional underpass, SP-225, near Brotas, Brazil.

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Fence and multifunctional underpass, SP-225, near Brotas, Brazil

Road ecology blog: Truck on SP-225 motorway, Brotas, Brazil.

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Truck on SP-225 motorway, Brotas, Brazil

Road ecology blog: Wildlife fence with metal posts as a barrier for deer (Odocoileus spp.) and elk (Cervus canadensis) along SR 260, east of Payson, Arizona, USA.

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Wildlife fence with metal posts as a barrier for deer (Odocoileus spp.) and elk (Cervus canadensis) along SR 260, east of Payson, Arizona, USA

Road ecology blog: Double wide cattle guard as a barrier for deer (Odocoileus spp.) and elk (Cervus canadensis) at access road for NF 405A, at jct with SR 260, east of Payson, Arizona, USA. The 2nd image shows an opening on the side for drainage that also allows small species (e.g. small mammals, reptiles, amphibians, invertebrates) that may have fallen into the pit to escape.

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Double wide cattle guard as a barrier for deer (Odocoileus spp.) and elk (Cervus canadensis) at access road for NF 405A, at jct with SR 260, east of Payson, Arizona, USA

Double wide cattle guard as a barrier for deer and elk with drainage and escape for small species, east of Payson, Arizona, USA

South American wildlife: Capybara (Hydrochoerus hydrochaeris) and young yacare caiman (Caiman yacare), Pantanal, Mato Grosso do Sul, Brazil.

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Capybara (Hydrochoerus hydrochaeris) and young yacare caiman (Caiman yacare), Pantanal, Mato Grosso do Sul, Brazil

Road ecology blog: Electric fence associated with an animal detection and driver warning system at a fence end, S.R. 260 east of Payson, Arizona, USA.

Electric fence associated with an animal detection and driver warning system at a fence end, S.R. 260 east of Payson, Arizona, USA. The fence is a 2.4 m (8 ft) high electric fence (Electrobraid™ / CrossTek™). The fence and animal detection system reduced elk-vehicle collisions by 97%.

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Electric fence associated with an animal detection and driver warning system at a fence end, S.R. 260 east of Payson, Arizona, USA

Electric fence associated with an animal detection and driver warning system at a fence end, S.R. 260 east of Payson, Arizona, USA

Road ecology blog: Elk warning sign, Arizona, USA.

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Elk warning sign, Arizona, USA