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An Australian standard for bush track was developed in 2001 in consultation with a number of out door bodies and organisations. These Standards are used to describe the condition of the track and the terrain and give a feel for the level of experience required by people using them.
The following tables gives a bit of a feel for the tack classification standards. I have modified them a bit from the AS 2156.1-2001 to suit the need of the website. As well as these elements for classifying a track the standard does also outline guides for management, these include facilities to provide, publicity and intervention levels.
The pictures in this table act a a bit of a guide, but only refer to the specific element been studied (IE just the sign or gradient)
General | 1 A well maintained path suitable for wheelchairs | 2 A popular and well maintained nature trail | 3 A well used and obvious bush track | 4 An established bush track with limited signage | 5 A marked trail that can become unclear in places | 6 A known route with n signs and a very indistinct track if any |
Track Conditions | 
Hard surfaced track suitable for wheelchairs. 1.2m wide. Minimal intrusions. | 
Modified or hardened surface. At least 0.9m wide. Minimal intrusions. | 
Modified surface, sections may be hard. <1.2m wide. Mostly clear of intrusions. | 
Generally distinct without major modification. Debris and obstacles are likely. | 
Limited modification, indistinct in places. Debris and obstacles are likely |  No modification of the natural environment. |
Gradient | 
Steps allowed only with alternate ramp access. | 
Generally no steeper than 1:10. Minimal use of steps. | 
May exceed 1:10 for short sections generally not > 1:10. Steps may be common. | Limited to environmental and maintenance considerations. | May include steep sections of unmodified surfaces. |
Signage | 
Signs for interpretation used frequently. Arrow markers used at intersections. | 
Signs and track markers used for direction. Limited signage for interpretation. |  Minimal signage for management and directional purposes. | 
Signage is limited and only for management purposes. | Signage is generally not provided. But may still be track markers. |
Infrastructure |  Generally includes facilities such as seats, lookout platforms, safety and hand railing. |  Generally facilities are not provided expect to deal with particular safety and environmental issues. |  Generally facilities are not provided expect to deal with particular safety and environmental issues. | Generally facilities are not provided. |
Terrain | No previous experience required, exercise normal care. | Need no bushwalking experience and a minimum level of specialized skills. May encounter steep slopes, unstable surfaces and minor water crossings. | Require a moderate level of specialized skills such as navigation. Require maps and navigation equipment. Need to be self-reliant, in particular for 1st aid and adverse weather. | Require a high level of specialized skills such as navigation. Require maps and navigation equipment. Need to be self-reliant, in particular for 1st aid and adverse weather. | Users require previous experience in the outdoors and a high level of specialized skills such as navigation. Require maps and navigation equipment. Need to be self-reliant, in particular for 1st aid and adverse weather. |
Weather |  Not applicable |  Forecasted and unforecasted storms may impact on navigation and safety |  Forecasted and unforecasted storms and severe weather may impact on navigation and safety |  Forecasted and unforecasted storms and severe weather may impact on navigation and safety |
A walk is then classified based on the higest class number found.
In this table below you will see the range of assessments made for a particular track ranged the full gamut but generally sat around class 3. But because the one element of weather ranged from 1 to 4 then this walk will be ranked a 4. However if in the summer months the weather class never extends beyond 3, then you could class this was as a 3 in summer and 4 in other seasons.
| Standard Class |
Elements | 1 | 2 | 3 | 4 | 5 | 6 |
Track Conditions | | | | | |
Gradiant | | | | | |
Signage | | | | | | |
Infrastructure | | | | | | |
Terrain | | | | | |
Weather | | | |
Please see the AS 2156.1-2001 standard for more information.