Getting to Perfect: True Compliance to MUTCD on Variable Speed Limit Signs

Posted by Phil Perut on Sep 25, 2017 8:03:21 AM

 

In the past, we’ve blogged the proper use and application of Variable Speed Limit Signs on U.S. highways as it pertains to use relative to either traffic or weather conditions. Highlighted were typical designs and regulations with options regulatory agencies employ in color and size of the overall sign, both for the static and the LED aspect of the sign. In the majority of applications however, typical 12 or 18” characters employed fall short of MUTCD full compliance.

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Topics: Mobility, Solar Signs

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

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

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

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

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

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

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