Capital Improvement & Infrastructure

Pervious Pavement ME In Reserve

Pervious concrete and pervious asphalt have been increasing in popularity as a potential solution to reduce impermeable surface areas associated with pavements and sidewalks, reduce puddling, and potentially slow storm water surface high flow rates. As important as these benefits are to surface runoff mitigation, there are concerns with the ability of pervious concrete and pervious asphalt mixes to provide sufficient structural support and longevity for the expected service life as well as life cycle costs. There are also concerns about the performance of the underlying soils and selections of the proper hydraulic designs. Given those issues and concerns and given the broad assumptions that are often made about material, soil, and construction issues of pervious systems, there is a need to provide the infrastructure community with a state-of-the-practice tool for the design of previous systems. Similar to the AASHTO Pavement ME, a state-of-the-practice design tool for pervious systems is needed. A pervious system ME would include environmental and weather data from MERRA for designing and modeling applications. MERRA provides continuous hourly weather data on a relatively fine-grained uniform special grid from 1979 to the present. Most MERRA data elements are fundamental physics-based quantities, many of which are not available from any ground-based or other conventional climate data source. The broad range of MERRA data means that it will likely meet the climate data needs for future applications as well. The close and uniform spacing of MERRA grid points also eliminate the need for improved weather data interpolation. MERRA also provides location-specific solar radiation measurement at every grid point. (FHWA PoolFund Study, 2014)


Archive: 2017 Ideas
Archive: 2017 Ideas
Idea No. 48