The CMS-T332 from American Signal Company represents the latest advances in changeable message signs utilizing all-LED technology. The ability to furnish timely, pertinent, and dynamic traffic information to the motorist via alphanumeric text and/or graphic displays provides the engineer with a measure of traffic control, incident management, and congestion mitigation unmatched by other informational systems. The CMS-T332 is a full size, three line, programmable changeable message sign utilizing all-LED display technology, is trailer mounted, provides for solar charging of the primary power supply batteries, and optionally may be remotely operable and/or interfaced with radar for use in traffic calming applications. The sign is capable of displaying one, two, or three line alphanumeric messages in three font sizes---number of characters per line dependent upon font size. Additionally, the sign is capable of displaying a limited library of graphic messages consisting of the MUTCD Part VI arrow board functions. The
CMS-T332 has the memory capacity to retain 199 pre-programmed messages, 199 user-generated messages, and 250 message sequences (up to six messages/sequence). The brightness, or intensity, of the LED portion of the display may be controlled manually, or alternatively may be regulated automatically via a photosensitive circuit that adjusts the LED intensity in response to ambient illumination, thus assuring superior visibility and legibility under all lighting conditions.
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The trailer mounted CMS-T332 may be operated remotely through the use of central host software and thus provide compatibility with existing ITS systems. The optional technologies include, but are not necessarily limited to, landline, cellular, and CDPD/TCPIP (Internet Protocol). Additionally, the sign may be utilized in traffic calming/speed awareness applications through the use of an optional radar interface. In this application, the sign is capable of not only displaying cautionary message(s), but also displaying actual vehicular speeds for those exceeding the user selectable and programmable "threshold" speed.
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