The subject invention relates to systems and methods that provide region-based security to database objects having hierarchical relationships. The refractive index profile is selected to provide a total dispersion at 1550 nm of between \u2212114 and \u2212143 psnmkm, and a kappa, defined as the total dispersion at 1550 nm divided by the dispersion slope at 1550 nm, of between 96 and 150 nm. The method also includes receiving a first trip plan for the first vehicle from an energy management system. Foam density, gel fraction, and resin blend may combine to provide an underlayment material having such reflective sound and moisture vapor barrier properties.