How to Define a Good Variable Speed Limit Sign

Posted by Phil Perut on Apr 3, 2017 1:30:00 PM

 

State DOT highway Intelligent Transportation Systems (ITS) are progressively capitalizing on comprehensive Variable Speed Limit (VSL) designs. As a more advanced and timely safety warning system, changing the speed limit based on weather or traffic conditions in focused locations offers more precise warning to stretches of especially vulnerable roadways. In often non-negotiable winter road conditions, unreliably slippery roadways require more precise, distinctly locational, lower speed limit advisories. Ideal weather conditions of summer, not so much. Variable speed limit systems are continually proven ITS safety devices in such states as New Hampshire, Wyoming, Minnesota, and Utah.  The VSL Subscribers list continues to climb as a cost effective, dynamic messaging system, in particular with rural locations.

VSLs foster opportunity for DOT’s to utilize accurate placement for both regulatory and warning applications. Serving as warning signs with amber colored characters in particularly hazardous locations, the dynamic aspect of posting variable speed limits or for that matter, blanked out signs, creates a positive and engaging interface with the driving public. Applied as a regulatory sign, VSL’s with white characters bring into play stricter standards with law enforcement options.  Excising proper design criteria, these signs can meet MUTCD standards for lettering in sizes 12 to 18 inches.  

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Topics: Mobility, Solar Signs

SES America Awarded Kentucky LCS Project

Posted by Emily Boissonneault on Mar 17, 2017 10:26:21 AM

SES America Inc.(SESA), a Rhode Island-based manufacturer of digital, LED signage for the transportation industry is pleased to announce the successful commissioning of a multi-year statewide contract for Lane Control Signs in the state of Kentucky.

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Topics: In the News, Mobility, Traffic Control, Lane Control Sign

SES America is proud to announce its ISO 9001 certification

Posted by Phil Perut on Mar 7, 2017 10:00:00 AM

SES America, Inc. is proud to announce that it is now ISO 9001:2015 certified.

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Topics: In the News

SESA Mobility Products are approved by Massachusetts DOT

Posted by Emily Boissonneault on Mar 6, 2017 10:42:44 AM

SES America Inc.(SESA), a Rhode Island-based manufacturer of digital, LED signage for the transportation industry has been approved by the Massachusetts Department of Transportation for their Blank Out and Lane Control Signs.  These models are now included in the MassDOT Qualified Traffic and Control Equipment List under Section 824: Flashing Beacons, Illuminated Warning Signs, and Lighted Barrier Arrows.

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Topics: In the News, Mobility, Blank Out Signs, Traffic Control, Lane Control Sign

How To Calculate An Optimized System for Solar Powered Dynamic Message Signs

Posted by Brandon Tessier on Jan 9, 2017 11:00:00 AM

In the past ten years, the solar power industry has experienced an annual growth rate of almost 60%. At the same time, installation costs for solar technologies has decreased by more than 70%. These statistics point to a positive shift in acceptance and adoption, with a simultaneous reduction in product price. 

Today, solar technologies generate enough electricity to power over 6.2 million homes. The commercial impact of solar power systems is growing at a fast rate, with 38 states in America that now have active corporate solar installs. Corporations are using solar power in distribution centers, retail stores, offices, and manufacturing centers.

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Topics: Solar Signs, Solar

5 Energy Conservation Opportunities for Intelligent Transportation Systems

Posted by Mike McKay on Dec 8, 2016 1:19:06 PM

 
Energy, in whatever form, is a key element
all civilizations require in order for its citizens to not only grow, but thrive. Since the 1850's, the world (especially North America) has developed and capitalized on the opportunity of nature’s abundant resources. Over time, new tools for the extraction of assorted resources have been created and the ensuing applications have revolutionized the world’s overall quality of life, emphatically typified in the United States of America.

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Topics: Solar Signs, Solar

7 Myths About  Solar Powered Dynamic Message Signs

Posted by Phil Perut on Nov 21, 2016 9:00:00 AM

 

Many portable DMS (Dynamic Message Signs) are already powered by Solar on our roads but very few permanent DMS. Numerous misunderstanding still exists especially regarding the size of DMS that can be powered by solar, the maintenance of the system, the battery life, and the longevity of the solution.
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Topics: Solar Signs

Let the Message Guide the Size of Your Variable Message Sign

Posted by Mike McKay on Nov 14, 2016 9:00:43 AM

 

Over the last forty years Dynamic Message Sign (DMS) or Variable Message Sign (VMS) technology for U.S. highways has evolved from mechanically operated florescent dots forming letters to present day color (Light Emitting Diodes) capable of bold, high definition images and text set on static green backgrounds and much more.  In the evolution, ITS engineers have meritoriously continued the selection process of size of the sign while abetting MUTCD mandates.  

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Topics: Dynamic Message Sign design

Variable Message Signs: How to Optimize Preventative Maintenance Visits

Posted by Derek Corbo on Oct 28, 2016 8:26:09 AM

 Variable Message Signs like most ITS equipment needs to be maintained to guarantee reliable operation. There are two types of maintenance visits:

  • Preventative maintenance
  • Corrective maintenance

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Topics: Grid-Powered DMS, Solar Signs

6 Criteria To Decide if a LED Blank Out Sign Works For Your ITS Application

Posted by Emily Boissonneault on Oct 18, 2016 3:30:00 PM

  

Defining the right type of sign for a specific project can be challenging. There are many different reasons and criteria that effect the choice of one product versus another. Designing a Variable Message Sign to solve a road safety challenge requires a thorough process and defined methodology - it is important to ask the right questions.

On one side, choosing the most advanced sign that can display anything, in any color, at any time is the easiest and most unlimited option. However, this often creates other challenges like power issues, monitoring complexity, and exorbitant costs for simple applications.

On the other side, very simple and cheap solutions exists, such as static signs with flashing beacons. Although, this can also have many disadvantages and does not solve most of the problems discussed in one of our previous blogs.

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Topics: Mobility, Blank Out Signs