Overview
Try before you buy!
You are welcome to download and evaluate CIRCLY 5.0. There is only one version of CIRCLY 5.0 - and it can be used in evaluation mode.
Click here to download CIRCLY 5.0.
CIRCLY 5.0 includes new features to support the 2004 revision of the Austroads Pavement Design Guide and advanced Cost Analysis.
Click here for recorded Demonstrations.
CIRCLY is software for the mechanistic analysis and design of road pavements. CIRCLY uses state-of-the-art material properties and performance models and is continuously being developed and extended. From the first mainframe version of CIRCLY in 1977, to Version 5.0 (released in early 2004). It is an integral component of the Austroads Pavement Design Guide (Austroads, 1992, 2004) that is widely used in Australia and New Zealand.
The system calculates the cumulative damage induced by a traffic spectrum consisting of any combination of user-specified vehicle types and load configurations. As well as using the usual 'equivalent' single wheel and axle load approximations, optionally the contribution of each vehicle/load configuration can be explicitly analysed.
Other geotechnical applications, such as foundation engineering and settlement analysis, can also be analysed by CIRCLY.
A Parametric Analysis feature can loop through a range of thicknesses for one or two layers, while simultaneously designing the thickness of another layer. This feature will optimise up to three layers. Combining this with a Cost Analysis feature, allows for fine-tuning of layer thicknesses to minimize construction and maintenance costs.
CIRCLY has many other powerful features, including selection of–
- cross-anisotropic and isotropic material properties;
- fully continuous (rough) or fully frictionless (smooth) layer interfaces;
- a comprehensive range of load types, including vertical, horizontal, torsional, etc.;
- non-uniform surface contact stress distributions; and
- automatic sub-layering of unbound granular materials.
Click here for recorded Demonstrations.
Click here to download the Product Brochure.
Click here for more details on CIRCLY.
Alternative design systems for Heavy Duty Pavements
A special design system, APSDS (Airport Pavement Structural Design System) is used for airport pavements. It is based on the CIRCLY system and has been modified to suit the design of airport pavements.
New!
HIPAVE (Heavy Industrial
PAVEment design) is for the mechanistic analysis and design of flexible
pavements subjected to the extremely heavy wheel loads associated with
freight handling vehicles in industrial facilities, in particular,
intermodal container terminals. It is designed to conveniently model each
combination of vehicle model and container load and to combine the damage
using the Cumulative Damage Factor concept.
Click here for a comparison of the features of our three pavement design packages.
We have recently published a paper that describes why performance data developed for highway pavements is not appropriate for heavy loadings such as airports and container terminals and can lead to grossly under-designed pavements.
For further details see Rodway and Wardle (1998).
Click here for more details.
