Abstract: The problems of the prior art are addressed by a novel tactile warning system that utilizes a separate component to add photoluminescence to the tile. In certain embodiments, the tactile warning system is a replaceable tile and a cap used to cover the fastener is made using a photoluminescent material. In other embodiments, the tactile warning system is a surface applied tile, a Cast-In-Place tile or a replaceable tile, and cavities are created on the upper surface of the tile. A photoluminescent insert is then disposed in these cavities. The photoluminescent insert may be made of plastic, aluminum or acrylic.

Abstract: An apparatus and method for using a single radial TWS product for a variety of applications is disclosed. Radial TWS products are used for intersections and the like. Often, different applications require radial TWS products of varying dimensions. The present invention includes a radial TWS product, having domes on its upper surface, which are ADAAG compliant. Markings are placed on the bottom surface, which indicate the appropriate places where the TWS product can be cut to achieve a variety of effective radii. These markings are positioned such that, after being cut, the resulting radial TWS product continues to meet the ADAAG required center-to-center spacing between domes of adjacent cut TWS products. In some embodiments, anchor members are used in conjunction with the TWS product to allow simple replacement.

Abstract: A replaceable, wet-set tactile warning surface unit having a body defining an upper surface and a lower surface, the body defining a series of raised projections on its upper surface, and defining a plurality of spaced through-holes from the top to the bottom surface, in which the raised projections are spaced from one another and the through-holes are located between projections. An anchor member such as a threaded insert is coupled to the bottom surface of the unit member directly below each of the through-holes by fasteners such as bolts that pass through the through-holes.

Abstract: A replaceable, wet-set tactile warning surface unit having a body defining an upper surface and a lower surface, the body defining a series of raised projections on its upper surface, and defining a plurality of spaced through-holes from the top to the bottom surface, in which the raised projections are spaced from one another and the through-holes are located between projections. An anchor member such as a threaded insert is coupled to the bottom surface of the unit member directly below each of the through-holes by fasteners such as bolts that pass through the through-holes.

Abstract: A replaceable, wet-set tactile warning surface unit having a body defining an upper surface and a lower surface, the body defining a series of raised projections on its upper surface, and defining a plurality of spaced through-holes from the top to the bottom surface, in which the raised projections are spaced from one another and the through-holes are located between projections. An anchor member such as a threaded insert is coupled to the bottom surface of the unit member directly below each of the through-holes by fasteners such as bolts that pass through the through-holes.

Abstract: A replaceable, wet-set tactile warning surface unit having a body defining an upper surface and a lower surface, the body defining a series of raised projections on its upper surface, and defining a plurality of spaced through-holes from the top to the bottom surface, in which the raised projections are spaced from one another and the through-holes are located between projections. An anchor member such as a threaded insert is coupled to the bottom surface of the unit member directly below each of the through-holes by fasteners such as bolts that pass through the through-holes.

Abstract: A replaceable, wet-set tactile warning surface unit having a body defining an upper surface and a lower surface, the body defining a series of raised projections on its upper surface, and defining a plurality of spaced through-holes from the top to the bottom surface, in which the raised projections are spaced from one another and the through-holes are located between projections. An anchor member such as a threaded insert is coupled to the bottom surface of the unit member directly below each of the through-holes by fasteners such as bolts that pass through the through-holes.

Abstract: A replaceable, wet-set tactile warning surface unit having a body defining an upper surface and a lower surface, the body defining a series of raised projections on its upper surface, and defining a plurality of spaced through-holes from the top to the bottom surface, in which the raised projections are spaced from one another and the through-holes are located between projections. An anchor member such as a threaded insert is coupled to the bottom surface of the unit member directly below each of the through-holes by fasteners such as bolts that pass through the through-holes.

Abstract: An apparatus and method for using a single radial TWS product for a variety of applications is disclosed. Radial TWS products are used for intersections and the like. Often, different applications require radial TWS products of varying dimensions. The present invention includes a radial TWS product, having domes on its upper surface, which are ADAAG compliant. Markings are placed on the bottom surface, which indicate the appropriate places where the TWS product can be cut to achieve a variety of effective radii. These markings are positioned such that, after being cut, the resulting radial TWS product continues to meet the ADAAG required center-to-center spacing between domes of adjacent cut TWS products. In some embodiments, anchor members are used in conjunction with the TWS product to allow simple replacement.

Abstract: A replaceable, wet-set tactile warning surface unit having a body defining an upper surface and a lower surface, the body defining a series of raised projections on its upper surface, and defining a plurality of spaced through-holes from the top to the bottom surface, in which the raised projections are spaced from one another and the through-holes are located between projections. An anchor member such as a threaded insert is coupled to the bottom surface of the unit member directly below each of the through-holes by fasteners such as bolts that pass through the through-holes.

Abstract: A replaceable, wet-set tactile warning surface unit having a body defining an upper surface and a lower surface, the body defining a series of raised projections on its upper surface, and defining a plurality of spaced through-holes from the top to the bottom surface, in which the raised projections are spaced from one another and the through-holes are located between projections. An anchor member such as a threaded insert is coupled to the bottom surface of the unit member directly below each of the through-holes by fasteners such as bolts that pass through the through-holes.

Abstract: A replaceable, wet-set tactile warning surface unit having a body defining an upper surface and a lower surface, the body defining a series of raised projections on its upper surface, and defining a plurality of spaced through-holes from the top to the bottom surface, in which the raised projections are spaced from one another and the through-holes are located between projections. An anchor member such as a threaded insert is coupled to the bottom surface of the unit member directly below each of the through-holes by fasteners such as bolts that pass through the through-holes.

Abstract: A computerized test preparation system and methods are disclosed which assist an examinee to increase his learning and improve his performance on standardized academic or applied aptitude and achievement exams. Performance feedback information is provided to a user, including conventional information such as number of items correct and time elapsed, pinpoints substantive areas of a particular exam in which the user is either weak or strong, and offers diagnoses of, and remediation tailored to, a user's personal difficulties. By assessing a user's responses to given exam questions, through various distractor error patterns manifested in the incorrect answers to multiple-choice questions, or through coded categories of responses in the case of user responses to constrained open-ended items, a preliminary diagnosis of a user's deficits in knowledge and/or test taking skill is made. This preliminary diagnosis is subsequently refined utilizing additional examination questions.