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Moreover, sidewalk bollards play a pivotal role in enhancing the aesthetic quality of public spaces. Available in various designs, colors, and materials, these structures can complement the architectural style of the surrounding area. Urban designers often utilize bollards to reflect the character of a neighborhood—modern cities may opt for sleek, minimalist designs, while historical districts might feature ornate, traditional styles. By thoughtfully integrating bollards into the urban landscape, cities can elevate their visual appeal and create a more inviting atmosphere for residents and visitors alike.
sidewalk bollards

The location of a sewer manhole must be carefully considered to ensure that the drainage system is effective and easy to maintain.[14][15] According to design standards, the distance between two manholes is typically between 7 and 20 meters, depending on the specific characteristics of the project.[16][17] In cities, the distance is 20 meters per manhole,[18] while in industrial or commercial settings it is 10-15 meters per manhole.[19][20] The distance between manholes in homes or restaurants is typically 7-10 meters.