Texas Highway Products: Availed Technologies’ Trusted Distributor Partner

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We sat down to talk to Texas Highway Products (THP), a trusted distributor partner of Availed Technologies, about the rapidly growing RRFB industry.

For 25 years, THP has provided traffic control products to municipal, county, and state agencies throughout Texas. As a long-time supporter and exhibitor at TexITE and IMSA Southwestern Section events, THP has the knowledge and expertise to support traffic departments throughout Texas.

In this Q&A, we’ll delve into THP’s insights on the recent advancements in RRFB technology, and their experiences with the AV-400 RRFB.

Q: Can you tell us about Texas Highway Products and how it has established itself as a trusted partner in the traffic control industry?

A: Texas Highway Products (THP) has been serving the municipal, county, and state traffic agencies throughout Texas for the past 25 years. We have earned our reputation as a top distributor by providing a high level of customer service and field support, and through our long-time support and participation in TexITE and IMSA Southwestern Section events.

THP has the knowledge and expertise to support traffic departments in Texas, whether it’s a small town or the TXDOT.

Q: Can you tell us about the products that Texas Highway Products represents?

A: In addition to Availed Technologies, Texas Highway Products represents other quality traffic products such as Q-Free, Clary, Encom, EDI, and Pelco. Availed’s products are available through Texas Highway Products and the Local Government Purchasing Cooperative Texas BuyBoard.

Q: How has the RRFB industry changed in recent years?

A: The RRFB industry has seen a rise in the use of standardized signposts for RRFBs, which has dramatically reduced the installation cost, time, and complexity. This has been made possible by improvements in power efficiency, allowing leading products like the AV-400 to be small and compact enough to mount on signposts.

Q: Where do you see the industry going in the coming years?

A: The RRFBs are still under interim approval with the Federal Highway Administration and will be included in the next edition of the Manual on Uniform Traffic Control Devices (MUTCD) by May 15, 2023.

We expect the usage of RRFBs to increase even more once they are included in the revised MUTCD. You can find more information on it on the MUTCD site.

Q: What changes are you seeing in the use of RRFBs?

A: The use of RRFBs is on the rise, as cities throughout Texas are making improvements to be increasingly more pedestrian-friendly. For example, Fort Worth recently ordered the Availed RRFB and the city is taking great pride in the steps being taken to give their residents safer transportation options.

The City of Cedar Hill is another example of an agency that has been using RRFBs for improving pedestrian crosswalks. Cedar Hill plans to become one of the most walkable cities in Texas, and RRFBs will play a crucial role in ensuring the safety of pedestrians and cyclists on its roads. There are many other municipalities in both the Dallas-Fort Worth and San Antonio areas that are utilizing Availed RRFBs as part of their pedestrian improvements.

In summary, Texas Highway Products is a valued and knowledgeable distributor partner for Availed Technologies. With a focus on customer service and field support, THP services are an indispensable asset for traffic agencies in Texas.

With the increasing prevalence of RRFBs in the industry, and the backing of Availed’s tools and experts, THP is well-equipped to meet the growing demand for pedestrian safety solutions.

 

Contact Us to Learn More

Highlighter yellow Availed RRFB school crossing sign with arrow, with a tree and blue sky in background.

Availed Technologies Has Been Approved by Oregon DOT

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We are happy to announce that the Availed AV-400 Rectangular Rapid Flashing Beacon is now listed as a qualified product on the Oregon DOT Green Sheets.

What is the Green Sheet Qualification Process?

Maintained by the Traffic-Roadway Section of the Oregon Department of Transportation, the Green Sheet Qualification process has a comprehensive evaluation process for a wide range of Traffic Signal, Illumination, and ITS equipment that includes physical, operational, and environmental testing.  For RRFBs in particular, the device is evaluated to ensure it is compliant with the requirements of the FHWA interim approval and the MUTCD and that it meets the requirements for mounting as shown in TM493.  Only prequalified RRFBs already listed on the green sheets will be approved for use for Oregon DOT projects under contract

The Importance of Energy Efficiency for RRFBs

As is very typical in the Pacific Northwest, many parts of Oregon have very low solar insolation during the winter months which presents a challenging environment for solar products such as the Availed AV-400 RRFB.  Key to ensuring reliable operation is energy efficiency, and this is where the AV-400 stands out.  All aspects of the product, from the wireless connectivity between units to the optical design of the LED lightbars has been designed to minimize power consumption.

 

For more about energy efficiency with RRFBs and how to specify products to ensure reliable operation see this article.

 

Availed Technologies – Now on the BC Recognized Products List

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Here at Availed Technologies, we’re proud to announce that our AV-400 RRFB has been approved by the British Columbia Ministry of Transportation and Infrastructure (MOT) and is officially on their Recognized Products list.

Today’s blog outlines all you need to know:

What is the BC Recognized Products List?

The BC Recognized Products List is a comprehensive database of products that are approved for use for highway construction and maintenance contractors

Products on this list are frequently used in performing work as part of contracts with the Ministry of Transportation and Infrastructure regarding the construction, rehabilitation, and maintenance of highways and bridges.

Approved products may be removed or suspended at any time if they do not perform or are found to be noncompliant or failing to meet ministry requirements.

The Importance of the BC Recognized Products List

The Recognized Products List is referenced during the following:

  • The road and bridge maintenance contract agreement
  • Project tender documents
  • Invitations to quote

It serves the important role of standardizing quality across different products and ensuring that approved manufacturers adhere to strict safety guidelines.

Approved Availed Technologies Products on the Recognized Products List

As an approved manufacturer, the following Availed Technologies products now hold a spot on British Columbia’s Recognized Products List:

  • The AV-240 Series, 24-Hour Flashing Beacon: A reliable, fast-installation flashing beacon with MUTCD-compliant flash patterns
  • The AV-400 Series, Rectangular Rapid Flashing Beacon: A purpose-built RRFB with a compact solar engine design, wireless operation, and a high-intensity light output that exceeds MUTCD requirements by up to five times

MassDOT RRFB Approval Announcement

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At Availed Technologies, we’re thrilled to announce that the Massachusetts Department of Transportation (Highway Division, Qualified Traffic Control) has experimentally approved our AV-400 Solar RRFB.

Learn more about the importance of this approval today:

The Impact of the AV-400 Solar RRFB

RRFBs play a crucial role in pedestrian crash countermeasures, and our AV-400 Solar RRFB is no exception.

Purpose-built from the bottom-up, the AV-400 series features both high-efficiency LED modules and an ultra-low power controller that remains dependable year after year.

It also touts:

  • A rated operating capacity exceeding 300 activations per day
  • High-intensity light output that exceeds the MUTCD requirements by up to five times
  • A sophisticated, compact solar engine design that is install-ready for all pole mount systems, making the installation process under 15 minutes
  • Zero configuration required for near-wireless connection between systems; one wire runs from the push button to the solar engine
  • Easily bolted or banded to any pole size thanks to its three-point pivoting lightbar mounting bracket and universal solar engine mount

Whether you are a Traffic Engineer responsible for designing and specifying an upcoming project, a Town Engineer seeking lower-cost, higher-powered alternatives to your municipality’s existing RRFBs, or a Traffic Technologist who knows that your city’s pedestrian countermeasures need an upgrade, consider the AV-400 Solar RRFB today.

The Benefits of Working With Availed Technologies

As established in the FHWA Countermeasure Tech Sheet, the average cost of one RRFB system is $22,250 USD– ranging from $4,500 USD to $52,000 USD each.

However, Availed Technologies makes it so you can install three-to-five RRFB systems for the same average cost of one. It’s all thanks to our RRFBs’ higher efficiency, smaller form factor, and minimized size.

That means each RRFB in our AV-400 series:

  • Offers lower material costs
  • Is easy to handle and fast to install
  • Can be pre-installed prior to being on-site and/or mounted onto existing sign posts

We are so proud that our AV-400 Solar RRFB is now included on  MassDOT Qualified Traffic Control Equipment List, under the Rectangular Rapid Flashing Beacons, Section 824: Flashing Beacons, Illuminated Warning Signs, and Lighted Barrier Arrows .

RRFBs in the Next MUTCD

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RRFBs were first introduced under an interim approval with the Federal Highway Administration (FHWA) in 2008.  Since that time, and due to the high effectiveness of the device, the use of  RRFBs as a crosswalk enhancement has become widespread.

Today, we here at Availed Technologies are going to outline RRFBs proposed role in the next MUTCD– including the most significant proposed changes to it to enhance pedestrian safety.

Let’s jump right in:

The Absence of an Updated MUTCD

In the absence of an updated version of the Manual on Uniform Traffic Control Devices (MUTCD),  the RRFB has remained under an interim approval for well over a decade.  On March 4th, 2022 FHWA Issued a Status of Rulemaking for the Eleventh Edition of the MUTCD.

According to this update, The Infrastructure Investment and Jobs Act directs USDOT to update the MUTCD by no later than May 15, 2023.

As one would expect, RRFBs are a key feature of the recommended changes as noted in the FWHA, U.S. Department of Transportation (DOT) notice of proposed amendments (NPA). These recommended changes orbit around the incorporation of provisional traffic control devices.

The Incorporation of Provisional Traffic Control Devices

The incorporation of provisional traffic control devices currently under Interim Approval, including pedestrian-actuated rectangular rapid-flashing beacons at uncontrolled marked crosswalks, green-colored pavement for bicycle lanes, red-colored pavement for transit lanes, and a new traffic signal warrant based on crash experience.

It is also noteworthy that several other key proposed changes to the MUTCD focus on pedestrians and bicyclists, mainly:

  • Improvements to safety and accessibility for pedestrians, including the location of pushbuttons at signalized crosswalks, crosswalk marking patterns, and accommodations in work zones
  • Expanded traffic control devices to improve safety and operation for bicyclists, including intersection bicycle boxes,two-stage turn boxes, bicycle traffic signal faces, and a new design for the U.S. Bicycle Route sign

The National Committee on Uniform Traffic Control Devices (NCUTCD) recommended changes to the MUTCD are very similar to the Interim Approval (IA-21).  One significant addition is guidance on the use of RRFBs at intersections with two crosswalks on an uncontrolled approach.  Additional guidance is provided for the use of RRFBs with overhead-mounted signs.

The Role of RRFBs in the Future of Pedestrian Safety

Here at Availed Technologies, we have over 25 years of experience in the Solar LED industry. We understand that providing a best-in-class product demands the support of industry-leading partners, and we are very proud to be represented by some of the most trusted companies in the business.

We strongly encourage you to read more about the MUTCD proposed changes today– and, if you have any questions, to reach out to our team!

 

What to Know About the Power of Solar RRFB Systems

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Image source: https://www.pexels.com/photo/landscape-photograph-of-skies-912364/

How much do you know about the power of solar RRFB systems?

In today’s blog, the team here at Availed Technologies outline common FAQs surrounding solar-powered RRFB systems: namely what the common array-to-load (ALR) variables are and what to keep in mind when maximizing power consumption.

Firstly, What Makes the ALR so Crucial?

The fundamentals for ensuring that the power of solar RRFB systems will be reliable year-round hinge on having a system where, on a daily basis, the power generated is greater than the power consumed. In the solar field this is known as the array-to-load ratio, or ALR.

Many of the variables for determining the ALR are intuitive, while others are less so. The following variables are considered the most common:

Time of Year, Latitude, and Historical Weather

A given system will have a much greater ALR installed in the sun-belt than in the Pacific Northwest. Time of year, latitude, and historical weather are all variables that are captured in solar insolation data available from NREL (the National Renewable Energy Laboratory.)

Industry best practices are to ensure the ALR of a system is a minimum of 1.2:1. To calculate this, the solar insolation value (measured as equivalent sun hours) for the month that has the lowest solar insolation for the year (typically December) is used.

Trees and Buildings

One often overlooked variable is shading from trees and buildings. Google’s Street View provides an excellent tool for determining the shade derating of a particular location, and it is important that this is factored into the calculation.

Why? Because more shade, of course, equals less daily power!

‘Under-the-Hood’ Variables

Also frequently overlooked are the ‘under-the-hood’ variables of solar RRFB systems themselves.

On the power generation side of the equation, this involves the solar panel and charging system that work together to deliver power to the batteries. Monocrystalline solar panels provide greater efficiency over polycrystalline solar panels; this difference is greatest during marginal charging conditions where, for an RRFB application, this is often when charging is most critical.

Similarly, Maximum Power Point Tracking (MPPT) charge controller technology provides greater efficiency over PWM (Pulse Width Modulation, particularly during lower light conditions where power generation can be so crucial.

The variables discussed so far are on the power generation side of the equation. On the power consumption side there are often very significant differences between different manufacturers’ systems and the technologies that are used.

Solar RRFB System Power Consumption

Before outlining the power consumption variables of solar RRFB systems, it should be noted that there are some inherent ‘buffers’ that make RRFBs particularly well-suited for solar power.

During the winter months where solar insolation is at its lowest, there is typically lower pedestrian activity… particularly during inclement weather. In addition, with shorter daylight hours comes more activations occurring in darkness when the system runs at a lower intensity, as dimming is required by the MUTCD for RRFBs and works to mitigate the disability glare that occurs if the light intensity is too bright.

Now, onto key solar RRFB system power consumption variables:

LED Efficiency

LED efficiency is a key variable in power consumption of an RRFB system. LEDs have been described as the ‘enabling technology’ for solar traffic devices and the gains seen throughout the years have been a game changer.

The landscape keeps changing and today there are ultra-efficient premium LEDs that, while cost-prohibitive for many applications, provide energy savings for devices like solar RRFBs that are significant.

The light intensity specification for RRFB LED indications is SAE J595 Class I which requires a relatively narrow beam pattern, much narrower than the ITE specification for LED Traffic Signal Modules. Compared to school zone flashers and 24-hour flashers that utilize these modules RRFBs require far less power which makes the device particularly well suited for solar power.

At the same time, in part due to the directional beam pattern combined with the irregular flash pattern, the RRFB is far more effective than traditional flashing beacons for a pedestrian activated warning system at uncontrolled crosswalks.

Wireless Technology

Another determining factor of power consumption is around the wireless technology used.

When one RRFB system is activated by the pedestrian push button all other systems commence activation simultaneously through being connected wirelessly. A wireless system designed for this specific application will consume a fraction of the power of a system designed for more general ITS applications.

Similarly, a controller that is designed specifically for the RRFB application will consume far less power than a controller designed for multiple applications. A well-designed controller will manage all the functions of the system with microchip level components on a single printed circuit board assembly. These functions include charging, powering the LEDs, field adjustments such as flash duration, and wireless connectivity between systems.

In short, an inefficient system can consume nearly four times the power compared to a highly efficient system. The Availed AV-400 RRFB, with a 20W solar panel and 14Ah battery capacity, will have a greater operating capacity than a less efficient system with a 60W solar panel and 50Ah battery capacity.

Energy Storage

Energy storage is the other key factor that needs to be considered and properly specified. The purpose of including batteries in an RRFB system is two fold: to enable operation during dark conditions when there is no charging, and to enable the system to operate through extreme weather conditions where over a 24 hour period the power generated could be less than the power consumed (ie when the ALR ratio is less than 1).

Consider a scenario when there are heavy overcast skies day after day in the winter time when daylight is already greatly reduced. In these conditions, charging will still occur with systems that have efficient charging technology, however the system could run an energy deficit where more power is consumed than generated during a 24 hour period. Sufficient battery capacity will ensure that the system will continue to operate throughout these conditions.

Industry best practices are for a system to have an autonomy of 5-to-10 days. A system with a high ALR will maintain reliable operation even with a lower autonomy due to the system’s ability to maintain charging in challenging conditions.

Start Utilizing the Power of Solar RRFB Systems Today

Given the multitude of variables involved in both the power generation and power consumption, the best way to evaluate an RRFB is with a Solar Performance Report that provides the array-to-load (ALR) and autonomy calculations.

Need help getting started harnessing the power of solar RRFB systems? Reach out to Availed Technologies today.

What to Know About the Safe Transportation for Every Pedestrian (STEP) Program

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Rendering courtesy of Alta Planning + Design

Today’s blog is your comprehensive rundown of what to know about the Safe Transportation for Every Pedestrian (STEP) Program.

Without further ado, let’s jump into what the STEP Program is, why it is so important to pedestrian safety, and the important role RRFBs play in the implementation of the program:

What is the STEP Program?

The STEP Program was created by the Federal Highway Administration (FHWA) to outline a series of recommendations that aim to significantly reduce pedestrian fatalities. It is a safety initiative that compiles multiple different pedestrian countermeasures that have proven safety benefits.

A key focus of the STEP Program is to improve pedestrian safety at uncontrolled marked crosswalks.

How the STEP Program Improves Pedestrian Safety

While the program’s goal is to address national safety problems and, in turn, improve the safety of individuals of all ages, stats prove just how crucial its implementation is.

For example, the National Highway Traffic Administration reports, “2016 witnessed the most pedestrian fatalities since 1990, accounting for approximately 16% of all roadway fatalities. Cost-effective countermeasures can be systemically applied to reduce these crashes and save lives.”

More specifically, these referenced countermeasures include:

  • Leading pedestrian intervals (LPIs) at signalized intersections, which flag to pedestrians to walk before vehicles get a green left or right signal
  • Raised crosswalks, which act as a traffic-calming measure that reduces vehicle speeds
  • Pedestrian crossing/refuge islands, which permit pedestrians a safer place to pause at the midpoint of a roadway before crossing the remaining distance
  • Pedestrian hybrid beacons (PHBs), which provide stop control for high-speed, multi-lane roadways
  • Road diets, which work to reduce the number of lanes pedestrians cross and overall vehicle speeds
  • Crosswalk visibility enhancements like crosswalk lighting and signage to help nighttime drivers and pedestrians navigate
  • Rectangular rapid flashing beacons (RRFBs): arguably the most vital implementation in the STEP Program

Here’s why RRFBs are considered so important to pedestrian safety:

RRFBs and Pedestrian Safety

Across North America, RRFBs have been assessed in areas like Arlington as a crucial part of the STEP Program.

Why? Because RRFBs are pedestrian-activated amber LED lights that significantly increase driver yielding behaviour.

RRFB implementation has also proven to:

  • Reduce pedestrian crashes
  • Decrease the average driver’s speed

As such, the STEP Program now prioritizes RRFBs in locations where warranted. This is determined by road configuration, daily vehicle volume (AADT), and posted speed limit. See page 23 of the FHWA Guide.

Learn More About RRFB Effectiveness Today

Here at Availed Technologies, we proudly offer products like the AV-400 RRFB that have helped the STEP Program reach their safety goals: our mission is extremely focused on producing the best products possible that are simple to install and provide exceptional reliability and performance.

To learn more about our best-in-class RRFBs, LED Enhanced Signs, and flashing beacons (or more about safety takeaways from the STEP Program), contact our team today.