Information on ARCADY 7
ARCADY has been successfully used to design and re-design thousands of roundabouts throughout the world. It has a host of satisfied customers including governments, multi-national organisations and universities. Its easy to use and intuitive user interface mean that it can also be used effectively by small consultancy companies. It can model both drive-on-the-left and drive-on-the-right roundabout systems, making it applicable to junctions in many countries. Since the release of ARCADY 5 in 2000, ARCADY has been capable of modelling capacity and delay and accidents at mini-roundabouts. These important innovations are based on the results of major government-funded research programmes undertaken by TRL. The models are of the same form as those used for conventional roundabouts and make available to the designer logical, rigorous design assessment procedures for mini-roundabouts. ARCADY calculations can be applied to single island roundabouts with up to seven arms allowing even the busiest and most complex junctions to be modelled. The user has a choice of methods of entering traffic flows and the program can estimate the shape of the peak, if necessary, according to the amount of data available. The safety of a design can be tested using ARCADY's accident predictions. Both at-grade and grade-separated roundabouts can be modelled, and pedestrian crossings (zebra crossing type) can be included. For more information and to download a demo, please visit the TRL website. |
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ARCADY (Assessment of Roundabout Capacity and Delay) has been developed over the last 20 years by TRL and is used for predicting capacities, queue lengths, delays (both queueing and geometric) and accident risk at roundabouts. ARCADY is an easy-to-use and helpful tool to aid traffic engineers in designing new roundabouts as well as assessing the effects of modifying existing designs.
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