RStO 2012 – Load Class incl. Forecast
Superstructure Asphalt, LC 1.0. – Example of a ready-made drawing object selected from the road furniture catalogue STRAKAT.
The initial values used as start-point values are calculated out of the forecast data for each observation period.
The RStO 2012 calculation process used to determine the load class is now available in CARD/1. The 3rd edition of CARD/1 Version 8.4 is now out and with it a helpful calculation tool: defining forecast horizons.
If traffic congestion from a forecast horizon for specific observation periods can be determined, this greatly improves the calculation process’s practical application. This is a significant improvement which not only aids planning, but helps when checking the existing conditions.
Calculating the load class over several observation periods means you can record changes such as detours and unusual road use. Even if only one forecast horizon value is defined, given as an ADT value with an HGV traffic load reading in percent, CARD/1 calculates the required HGV traffic load reading in vehicles/24 hours for each observation period.
Test and check previous readings (recalculation, checking existing conditions) with the forecast horizon in order to calculate not only the future but also the past. The HGV traffic load readings can be altered manually and all the input data printed out as a report. The calculation is saved in relation to the alignment as a file in the project. The type of superstructure can be found in the road furniture catalogue STRAKAT under ‘drawing objects’, sorted according to load class.
You are always on the safe side, even in borderline cases, with this calculation process.