This vandal-proof grill (Fig. 4-a) is built of 14-gauge steel and it can take up to 55,000 pounds of impact force. Behind its perforations, a 24-gauge steel interwoven screen adds an extra layer of protection. Once mounted to the enclosure (Fig. 4-b) it stays in place because its heat-treated alloy fasteners can only be removed with a special wrench. A tough, electrostatically applied polyester powder paint finish is excellent for outdoor applications.
For the majority of people, transportation is more than getting from point A to point B. It’s also about comfort. For these people clear announcements are one of the most important experiences when using mass transit.