Disability awareness here is fairly high. New accommodation must meet accessibility standards and discrimination by tourism operators is illegal. Many key attractions provide access for those with limited mobility and sometimes for those with visual or aural impairments; contact attractions or tour operators in advance. Most downtown streets have well-maintained footpaths, but these are less common in the suburbs.
Some car-rental companies (Avis, Hertz) offer rental cars with hand controls at no extra charge for pick-up at the airport (advance notice required).
Download Lonely Planet's free Accessible Travel guides from http://lptravel.to/AccessibleTravel.
Deafness Association of the Northern Territory is a potentially useful resource for hearing-impaired travellers.