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| Technical measures | Advantages | Disadvantages |
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| Permeable paving | Wide application area, convenient construction, can replenish groundwater and have a certain peak flow reduction and rainwater purification effect | Easy to block, cold areas are at risk of being destroyed by freezing and thawing |
| Green roof | Can effectively reduce the total amount of roof runoff and runoff pollution load | There are strict requirements on roof load, waterproofing, slope, space conditions, etc. |
| Sunken green space | Wide application area, its construction cost and maintenance cost are low | Easily affected by terrain and other conditions, the actual regulation and storage volume is small |
| Biological retention facility | Various forms, wide application area, easy to integrate with the landscape, good runoff control effect, low construction and maintenance costs | In areas with high groundwater levels and rock layers, poor soil permeability, and steep terrain, necessary measures such as soil replacement, seepage prevention, and ladder installation should be taken to avoid secondary disasters, which will increase construction costs. |
| Permeation pond | Can effectively supplement groundwater, reduce peak flow, and lower construction costs | Strict requirements for site conditions and high requirements for later maintenance and management |
| Seepage well | Small footprint, low construction and maintenance costs | The water quality and quantity control effects are limited |
| Wet pond | It can effectively reduce the total amount of runoff, runoff pollution, and peak flow in a larger area | Strict requirements for on-site conditions, high construction and maintenance costs |
| Rainwater wetland | Can effectively reduce pollutants, has a certain runoff and peak flow control effect | Higher construction and maintenance costs |
| Reservoir | It has the advantages of saving land, easy access to rainwater pipes, avoiding direct sunlight, preventing mosquitoes and flies, and storing large amounts of water. Rainwater can be reused for green irrigation, washing roads and vehicles, etc. | The construction cost is high, and maintenance and management should be paid attention in the later period |
| Rainwater tank | Mostly molded products, convenient for construction and installation, and easy for maintenance | The storage volume is small, and rainwater purification capacity is limited |
| Regulating pond | Can effectively reduce peak traffic, lower construction and maintenance costs | The function is relatively simple |
| Regulating pool | Can effectively reduce peak traffic | The function is simple, high construction and maintenance costs |
| Grassed swales | Low construction and maintenance costs, easy to integrate with the landscape | Areas such as built urban areas and newly built urban areas with greater development intensity are vulnerable to site conditions |
| Seepage pipe/drain | Small space requirements for the site | The construction cost is high, it gets blocked easily, and is difficult to maintain |
| Vegetation buffer zone | Low construction and maintenance costs | High requirements for site space, slope, and other conditions, and limited runoff control effects |
| Initial rainwater discarding facility | Small footprint and low construction costs, which can reduce the maintenance and management costs of rainwater storage and rainwater purification facilities | Runoff pollutants and discarded flow are generally not easy to control |
| Artificial soil infiltration | Infiltration rainwater purification effect is good, easy to integrate with the landscape | High construction costs |
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