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Ladder
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Specify road surfaces
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Specify path surfaces
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Specify road surfaces
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Specify road surfaces
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Specify whether pedestrian crossings have markings
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Specify path surfaces
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Specify street/place names to addresses
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Specify road surfaces
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Specify whether traffic signals have tactile indications that it's safe to cross
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Specify whether traffic signals have a button for pedestrians
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Specify whether traffic signals have sound signals
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Specify speed limits
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Specify leaf types
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Specify path surfaces
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Specify road surfaces
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Survey if places still exist
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Specify path surfaces
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Determine roads lane count
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Specify road surfaces