Manholes as we know them today have been in use since the mid-19th century but have evolved over time for increased safety and functionality. While they were originally built with bricks, manholes are most often built using concrete today, though some are made of plastic, fiberglass or a similar composite. Composite liners are more likely to be used in regions with a high risk of corrosion or in areas where exfiltration or infiltration into the line is common. Many manholes today are built aboveground first. These are typically referred to as precast manholes—designed to fit a dug-out space and assembled on site before being lowered into the ground.

In recent years, urban areas have faced significant challenges regarding waste management. Rapid population growth, urbanization, and increased consumerism have led to overwhelming amounts of waste, straining existing systems and the environment. To tackle this issue innovatively, the concept of the Smart Garbage Bin has emerged, transforming the traditional approach to waste disposal and management.

The versatility of manual rising bollards allows for their application in various environments. In city centers, they can be used to create pedestrian-only zones, enabling safer and more enjoyable spaces for walking, dining, and shopping. At events, manual bollards can be installed temporarily to manage crowds and vehicular access, ensuring that emergency routes remain clear and accessible.