What are the environmental and economic benefits of using permeable pavement systems?

1 Reduce stormwater runoff and flooding

One of the main environmental benefits of permeable pavement systems is that they reduce stormwater runoff and flooding, which can cause erosion, pollution, and damage to infrastructure and property. By allowing water to infiltrate into the ground, permeable pavement systems reduce the volume and peak flow of runoff, which can overwhelm storm drains and waterways. This also helps to recharge groundwater and maintain base flow in streams and rivers, supporting aquatic ecosystems and water supply.

3 Enhance urban aesthetics and livability

Permeable pavement systems can also enhance urban aesthetics and livability, which can benefit the social and psychological well-being of residents and visitors. By reducing runoff and flooding, permeable pavement systems prevent the formation of puddles, ice, and mud on the pavement surface, improving safety and comfort. By improving water quality and reducing pollution, permeable pavement systems contribute to cleaner and healthier urban environments, supporting recreation and wildlife. By allowing water to infiltrate into the ground, permeable pavement systems also reduce the urban heat island effect, which can increase the temperature and energy demand in cities.

4 Save costs and resources

Permeable pavement systems can also save costs and resources, which can benefit the economic and environmental sustainability of pavement engineering projects. By reducing runoff and flooding, permeable pavement systems can reduce the need for stormwater management infrastructure, such as pipes, catch basins, and detention ponds, saving capital and maintenance costs. By improving water quality and reducing pollution, permeable pavement systems can reduce the need for water treatment and remediation, saving operational and environmental costs. By allowing water to infiltrate into the ground, permeable pavement systems can reduce the need for irrigation and landscaping, saving water and energy resources.

5 Increase durability and performance

Permeable pavement systems can also increase durability and performance, which can benefit the longevity and functionality of pavement engineering projects. By allowing water to infiltrate into the ground, permeable pavement systems prevent the accumulation of water and pressure in the pavement structure, reducing the risk of cracking, heaving, and potholing. By filtering water through the pavement and the underlying layers, permeable pavement systems prevent the leaching of salts and chemicals into the pavement material, reducing the risk of deterioration and corrosion. By reducing the temperature of runoff and the pavement surface, permeable pavement systems prevent the thermal expansion and contraction of the pavement material, reducing the risk of warping and buckling.

6 Choose the right type and design

Permeable pavement systems are not suitable for every situation and require careful planning and design to achieve their benefits. Some factors to consider include the soil type and drainage capacity, the traffic load and speed, the climate and precipitation patterns, the maintenance and inspection requirements, and the local regulations and standards. Depending on these factors, different types and designs of permeable pavement systems may be more or less appropriate and effective. Therefore, it is important to consult with pavement engineering experts and conduct site assessments and tests before choosing and installing permeable pavement systems.

7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?