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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.