Design rainfall analysis tool for urbanized areas in Slovak Republic

Abstract

Assessments of sewer systems are key tools in verification of sewer hydraulic capacity. Rain sewers and combined sewers are most susceptible regarding system overload and so while assessing them; proper choice of design rainfall is inevitable. The calculation of design rainfall is time-consuming and inefficient and that was the reason that leads to development of design rainfall analysis tool in order to minimize the length of the calculation process of design rainfall. The tool incorporates calculation of design rainfall depending on the specified area of interest within Slovakia and chosen periodicity, allows block rain, reduced block rain and synthetic rain to be calculated with the possibility of their mutual comparison, and also serves to generate background data for further use in form of portable document format and excel files.

Present Condition Analysis and Design of Sewer Collector Recovery

“…-Block rainfalls with constant intensities; -Synthetic rainfalls with variable intensity; -Historical rain; -Real rainfall [6], [14], [15].…”

Implementation of the percolation facilities for rainwater runoff reduction

“…In this model rain, the only statistical parameter is the time position of the maximum intensity. The rain amount and its peak intensity are derived from the block rains curve[11]. The course of synthetic model rain can be found in Fig.2.…”