Summer traffic signal maintenance is critical as temperatures rise and project demands increase. Longer days and tighter timelines mean your equipment needs to perform reliably without interruption. Horizon Signal equipment is built to handle tough conditions, but a few simple maintenance practices can keep your projects running efficiently all summer long.

Here are three easy ways to make sure your signals are ready for the heat: 

1. Prioritize Battery Maintenance: When temperatures rise, so does the risk of battery water loss. Maintaining proper water levels is the single most important factor in preserving battery health during the summer months. Longer daylight hours and tighter construction timelines mean your temporary traffic control equipment must perform reliably without interruption. High heat accelerates evaporation, and low water levels can lead to reduced performance, shorter battery life, and even permanent damage.  

To stay ahead of unexpected failures:

• Check battery water levels regularly, especially during extended heat waves 

• Top off low cells with distilled water as needed 

• Avoid overfilling, which can also impact battery performance 

To simplify this process in the field, we recommend using the SQ3 Battery Watering Kit. This add-on allows deployment crews to quickly and evenly fill multiple batteries at once—saving time, reducing guesswork, and helping ensure your SQ3 units stay powered through the hottest days. 

2. Keep Solar Panels Performing at Peak Charging Efficiency: Your solar panels are your first line of defense against downtime—so keeping them clean is critical. Over time, dust, pollen, dirt, and jobsite debris can build up on panel surfaces, reducing their ability to absorb sunlight. Even a light layer of grime can noticeably impact charging efficiency, a major operational risk during long summer days when you’re relying on maximum output. 

A simple cleaning routine makes a big difference: 

• Wipe panels down with a soft cloth or sponge 

• Use water or a mild cleaning solution if needed if stubborn buildup requires it. 

• Avoid abrasive materials that could scratch the surface and compromise the surface.

A quick clean takes just a few minutes but helps ensure your system is consistently operating at full capacity. Clean panels are essential for consistent performance and should be part of your regular summer traffic signal maintenance routine.

3. Work Smarter with Remote Monitoring 

Horizon Signal Plus: Summer conditions don’t just affect your equipment—they impact your crews, too. Instead of sending team members out in the hazardous heat to manually check each unit, take advantage of Horizon Signal Plus. Our Advanced remote monitoring platform allows you to track battery voltage, system status, and comprehensive performance from your phone or laptop. 

By integrating Horizon Signal Plus into your operations, you can: 

• Identify trends in battery voltage before they lead to downtime and project disruption

• drastically reduce unnecessary site visits 

• Keep your crew safer and more productive by minimizing exposure to extreme heat 

It’s a smarter, more efficient data driven way to manage your fleet—especially during the stretch of the construction year. 

Secure Your Work Zone Safety and Compliance and Stay Ahead of the Season 

Proactive preparation today prevents costly project delays tomorrow. By aggressively maintaining batteries, keeping solar infrastructure clean, and leveraging remote monitoring technology, you set your team up for a smoother, safer, and far more productive summer. 

Don’t let extreme heat compromise your temporary traffic control compliance. If you have questions about getting your equipment summer-ready, or want to learn how to integrate the SQ3 Battery Watering Kit or Horizon Signal Plus into your fleet, our expert technical team is standing by to help. 

Contact a Horizon Signal Distributor Today to Upgrade Your Fleet