What is recommended for use as a traffic separator below arcades?

Using planting strips as a traffic separator below arcades is recommended due to their ability to create a visually appealing and functional division between pedestrian spaces and vehicular areas. Planting strips serve as a natural barrier that enhances the aesthetic quality of the arcade while also providing a physical separation that can improve the safety of pedestrians.

Additionally, planting strips help with environmental sustainability by incorporating greenery into urban spaces, which can improve air quality and provide habitat for wildlife. The foliage can also provide shade, making the area more comfortable for pedestrians.

In contrast, bollards are often utilized for sturdier, more protective barriers but may not offer the same aesthetic benefits as planting strips. Fountains, while attractive, do not provide a physical barrier and may create operational challenges in terms of maintenance. Fences can delineate spaces but can be perceived as less inviting and may obstruct views and natural light, which are essential in recreational urban areas like arcades. Thus, planting strips are favored for their combined functional, aesthetic, and environmental benefits in urban design.