Wednesday, September 26, 2012

Transportation Defined: Dynamic Message Signs

Dynamic Message Sign
We’ve got a blog post coming up real soon that’s going to focus on Dynamic Message Signs (Don’t know what those are? Keep reading!).

That blog post isn’t ready quite yet, so in the meantime we wanted to at least get started by defining a couple of terms for you …

First up, Dynamic Message Signs: These are the large signs over/near roadways used to display messages to the public. You’ll often see travel times posted on these signs during rush hours or safety messages and other travel information.

The larger DMS have three rows of 18 characters. Each of those characters measures 18 inches tall.

Now that you know what DMS is, take a look at a Node Building. These “buildings” are about the size of a typical storage shed and are located near the roadway. There are several node buildings in the Phoenix-metro area. 

Node Building
These nodes are filled with equipment capable of collecting regional information (e.g., from various controller cabinets) and sending it to the TOC. Node buildings are equipped with fault tolerant air conditioning systems to maintain moderate summer temperatures.

OK … now you’ll have to stay tuned for a more in-depth blog post on Dynamic Message Signs.

Transportation Defined is a series of explanatory blog posts designed to define the things you see on your everyday commute. Let us know if there's something you'd like to see explained ... leave a comment here on the blog or over on our Facebook page!
Posted by Angela DeWelles   |  Labels:  Dynamic-Message-Signs, Node-Buildings, Transportation_Defined


The Arizona Ombudsman – Citizens Aide helps you resolve ongoing issues with State Agencies.

Civil Rights

Pursuant to Title VI of the Civil Rights Act of 1964, the Americans with Disabilities Act (ADA) and other nondiscrimination laws and authorities, ADOT does not discriminate on the basis of race, color, national origin, sex, age, or disability. Persons that require a reasonable accommodation based on language or disability should contact ADOT’s Civil Rights Office at Requests should be made as early as possible to ensure the State has an opportunity to address the accommodation.

De acuerdo con el Título VI de la Ley de Derechos Civiles de 1964, la Ley de Estadounidenses con Discapacidades (ADA por sus siglas en inglés) y otras normas y leyes antidiscriminatorias, el Departamento de Transporte de Arizona (ADOT) no discrimina por motivos de raza, color, origen nacional, sexo, edad o discapacidad. Las personas que requieran asistencia (dentro de lo razonable) ya sea por el idioma o discapacidad deben ponerse en contacto con la Oficina de Derechos Civiles de ADOT en Las solicitudes deben hacerse lo más antes posible para asegurar que el Estado tenga la oportunidad de hacer los arreglos necesarios.