Introducing the Ultimate Solution in Tactile Walking Surface Indicators (TWSI). Access® Tile code compliant tactile solutions like Replaceable Cast in Place have combined proven engineered polymers, processing, and material technologies with innovative and intelligent design features to create the ultimate replaceable tactile walking surface indicators. Maximized efficiencies in manufacturing, materials sourcing, and product specifications deliver the most cost-effective solution in the industry. Access® Tile truncated domes and code-compliant wayfinding bars tiles are the industry leader for durability, weather, and wear resistance and are available as surface-applied tiles and directional bars.