the rain gutter along the downtown road is clogged with decaying leaves and soil, so it is dredged by manpower. (Seoul, Korea)

the rain gutter along the downtown road is clogged with rotten leaves and silt and is dredged by manpower. (Beijing, China)

lower part of the rain gutter(catch basin) was blocked by soil and flooded without drainage.

Catch basin cleaned using a vacuum cleaner car. (Seoul, Korea)

The Seoul Metropolitan Government spends about 10 billion won annually on the cleaning budget for 547,478 rain gutter and catch basin

fallen leaves and garbage are cleaned by manpower with a wire mesh installed in a rain gutter on the roadside in the city center. (Haikou, China)

rain gutter was clogged by sediments and flooded without drainage. (Seoul, Korea)

rain gutter steel grating and inside are clogged with garbage, cigarette butts and vomit.

Although various filtration nets installed in rain gutter are being installed, it is still difficult to filter soil and collect contaminants.

Most of the pollutants and garbage are swept away in the first 30 minutes(first flush) after the onset of rainfall.

Non-point pollution reduction devices in the form of civil structures (manholes) have problems in that they are expensive to install, require a lot of landfill(excabation), and are difficult to maintain because they are located deep in the ground.

These are various problems of non-point pollution reduction devices that have been installed on arterial roads and highways.

Small-scale detention ponds and infiltration trenches, which are natural non-point pollution reduction facilities, require a lot of site, and it is difficult to process sediment and replace filter media, and it is difficult to verify the effectiveness.

Small-scale detention ponds and infiltration trenches, which are natural non-point pollution reduction facilities, require a lot of site, and it is difficult to process sediment and replace filter media, and it is difficult to verify the effectiveness.

A large number of civil complaints are occurring as a result of insufficient filtering of pollutants and the transfer of pollutants from the road to the surrounding soil.

Existing filter-type road non-point pollution reduction devices are difficult to dredge and replace filter media.

This is a scene of dredging and cleaning the rain gutter on the median inside of the highway.

A large filtration type non-point pollution abatement device is not suitable for installation on roads because it requires backwashing facilities and power using air and water on site.

RoaDrain applies ICT technology to enable monitoring through a network at sites around the world.

Simulated rainfall and drainage condition simulation can be tested using the same standard waterway test equipment as the actual highway drainage site.

This is a schematic diagram of the company's patented technology applied to RoaDrain-ex, which compensates for the passage surface when it is installed as a drainage on a road slope.

It is a schematic diagram of RoaDrain-City patented technology to be installed on the rain gutter.(catch basin insert)

It is a LoRa-based RoaDrain sensor node that has obtained communication standard certification.

It is a RoaDrain sensor node based on NB-IoT, LTE cat M1 that has obtained communication standard certification.

It is a schematic diagram of our patented technology related to the connection of RoaDrain filtration strainer and filter bag.

These are the experimental results of our fiber filter that shows 91.86% or more of SS (suspended solids) filtration efficiency.

The dashboard using the cloud network optimizes system control and maintenance. Users do not need to build a separate server.