Discover the Environmental Standards Defined by NEMA TS4

Posted by David Connolly on Sep 16, 2016 10:00:00 AM

We recently published a blog about the 5 Display Properties Defined by NEMA TS4 and are continuing with our series referencing these specifications for Dynamic Message Signs (DMS). This installment will examine the Environmental Requirements described in Section 2 of NEMA TS4 that establishes the limits of operational conditions in which the DMS must perform. They are also intended to make sure the DMS is delivered in good condition.

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Topics: State Government, Municipal Government, Grid-Powered DMS, Federal Government, Mobility, Solar Signs

VMS Pricing vs Value: 7 Considerations When Assessing Your Priorities

Posted by Mike McKay on Aug 15, 2016 2:00:00 PM

In the last 40 years, since dynamic messaging signs became an integral part of the U.S. highway’s persona, the industry has gone from flipping mechanically iridescent orange dots to advancing fiber optic designs, and now, LED lighting.  With continued advancements  in solar due to greater energy efficient design and product with ventilation or cooling systems are no longer necessary.  Trending along with LED advancements is the critical need for agencies to maximize their purchasing power while still acquiring ITS devices that truly match their most recent concerns in the field and on paper.  As a result agencies are looking towards value versus finding the lowest VMS pricing in contract assessments.                                                                                                               

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Topics: Grid-Powered DMS

Vision Zero:  The Human Approach to Road Safety

Posted by Phil Perut on Jul 20, 2016 1:00:00 PM

The Center for Disease Control and Prevention (CDC) reports that over 32,000 people are killed and more than 2 million are injured every year from motor vehicle crashes. That works out to roughly 90 deaths each day across the United States - with one third involving drunk driving and almost another third involving speeding. In order to combat such a staggering number of transportation-related casualties, federal and state “Vision Zero” (known in the U.S. as 'Towards Zero Deaths') initiatives are being rolled out to achieve a future where there are no fatalities or serious injuries in road traffic.

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4 Reasons DOTs Should Power Travel Time Data Through the Cloud

Posted by Phil Perut on Jul 1, 2016 1:49:10 PM

Since the late 1920’s, engineers and planners have conducted travel time and delay studies to unravel the intricacies of transportation. With the instatement of the revolutionary Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA), flexible state and local programs were developed to address urban, suburban, and rural congestion. Travel time, a key performance measure in congestion management systems, is one of the few ITS concepts readily understood and communicated by everyone from your local news reporter to the daily commuters in the trenches.

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Topics: DMS Connect

How to Choose the Best Dynamic Message Sign Manufacturer

Posted by Phil Perut on Jun 24, 2016 1:30:00 PM

When considering a DMS Manufacturer, there are a variety of factors to take into account. You might be inclined to choose a manufacturer strictly based on cost, but have you truly done your due-diligence? Entering into or accepting a bid with an under performing DMS manufacturer can have serious consequences - consequences that outweigh upfront savings. 


Take a look below for the eight criteria we believe defines an outstanding DMS manufacturer:


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Topics: Grid-Powered DMS, Solar Signs

Hacked Road Signs - What's Really the Message Here?

Posted by Mike McKay on Jun 9, 2016 10:58:31 AM

Over Memorial Day Weekend, several states made headlines when mobile DMS were hacked.  These temporary construction warning signs on the highway displayed hacked messages ranging from political statements, to “Party Hardy Yall!”.  A week later, another sign was hacked that displayed a comment referencing the recent  Cincinnati Zoo gorilla incident. While these altered messages may serve as harmless entertainment for daily commuters, tampering with these signs are problematic and a dangerous display of recklessness.  With regards to the later, traffic operations professionals are challenged with life or death consequences - funny it is not.

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Discover the 5 Display Properties Defined by NEMA TS4

Posted by David Connolly on Jun 2, 2016 12:39:44 PM

The NEMA TS4 Hardware Standards for Dynamic Message Signs (DMS) with NTCIP Requirements is a product of the NEMA 3-TS, Transportation Management Systems and Associated Control Devices Section. It is intended to provide the user a safe, dependable, functional and easily maintained Dynamic Message Sign. To this end, the standard provides the minimum hardware and functional characteristics of electronically controlled DMS used for displaying messages to travelers.

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Topics: State Government, Municipal Government, Grid-Powered DMS, Federal Government, Mobility, Solar Signs

Autonomous Bus & Shuttle Services: Once a Far-Off Concept, Becoming Today's Reality

Posted by Phil Perut on May 29, 2016 8:30:00 AM

Everyone in the ITS world hears something about autonomous vehicles almost every day. Most of the time, it is about autonomous vehicles developed by Google or another one of the major automobile manufacturers. There are many other experiences and tests especially for mass transit like buses or shuttles.

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Topics: In the News

Removing Dynamic Message Sign Ventilation Provides DOT Cost Savings

Posted by Phil Perut on May 27, 2016 11:30:00 AM


If you look at the newest ultra-thin laptops on the market today, you will probably notice how much thinner and lighter they are compared to the laptops of even 5 to 10 years ago.  Gone are the ventilation channels, filters and fans and their associated bulk, weight and cost.  Yet Moore’s law implies that the number of transistors is doubling every two years.  You would think that the heat management problem would be getting worse.  What gives?

Fortunately, the semiconductor industry has managed to reduce the power dissipation faster than the growth of the device complexity.  This has allowed equipment designers to eliminate much of the ventilation components of years past resulting in products that are thinner, lighter and more reliable.

Just as the computer designers have reduced the heat created in modern laptops, SESA has been pioneering the increased efficiency in display technologies which allows for the elimination of sign ventilation provisions.

However, in our Dynamic Message Signs (DMS) world, it seems that this technological evolution is not yet taken into consideration. Numerous specifications throughout the country still call for DMS ventilation, temperature monitoring, intake filters, etc. Many useless devices that add costs, use energy and increase the maintenance of our DMS.

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19 Benefits of Using Embedded Web Servers for Dynamic Message Signs

Posted by Derek Corbo on May 26, 2016 12:58:52 PM

What is a Web Server?

A Web Server is a technology that utilizes an HTTP request to manipulate many processes via the World Wide Web or computer networks. It is used in many industries and markets, but it is not yet widely used in our Intelligent Transportation System world.

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Topics: Grid-Powered DMS, Solar Signs