Digital speed limit signs (DSLs), also known as variable speed limit signs (VSLs), present a dynamically changeable speed limit to motorists. The Wanco DSL/VSL adds portability, eliminating the need for permanent wiring and infrastructure. The trailer is easy to transport and quick to deploy. Onboard power is provided by batteries, which are charged automatically by a solar-based charging system.
The Wanco DSL/VSL is a changeable speed limit sign that mimics the look of a regulatory R2-1 speed limit sign. It presents the speed on a brightly lit, highly visible LED display. State-of-the-art electronics, high-efficiency LEDs and optical lenses enhance performance and optimize power consumption. This results in exceptional visibility and legibility, along with significantly extended run time. With adequate sunlight, the Wanco VSL can operate autonomously year-round.
When the DSL/VSL is deployed on highways and other high-speed arterials as a component of an active traffic management (ATM) system, the displayed speed can be changed remotely or at the sign. Data logging offers a viewable history of events, including changes to the speed, and password protection restricts access. Operators can use the Wanco Fleet Manager service or an ATM system to update the speed limit in real time, accommodating changing conditions due to weather, incidents, work zone activity and other traffic events. Broadcast capability is standard. Administrators can configure minimum and maximum speeds, enable scheduling and control the integrated flashing beacons.
Power is provided by batteries, which are charged by an automated solar-based charging system. A backup AC-powered charger is included. Additional solar, batteries and regulatory signs may be added at the factory to support the application and local requirements.
Wanco Variable Speed Limit Trailers can be customized to meet state DOT requirements. Contact us for more information.
Features
- Highly energy efficient for extraordinary run tim
- Large LED display and optical lenses for outstanding visibility
- Easy-to-use local and NTCIP-compatible remote control
- Lockable control box and battery box prevent unauthorized access
- Durable equipment with 5-year warranty
Setup
- Portable system is easy to transport and deploy
- Large regulatory speed limit sign has changeable speed numbers
- Folding frame, with speed limit and work zone signs attached, rises from horizontal (travel position) to vertical (deployed)
- Heavy-duty hand-winch with safety brake raises folding frame
- Single locking device holds folding frame in place while operating and during transport
- Stabilizer legs raise tires off the ground to provide stability in high wind
Operation
- arge regulatory speed limit sign with electronic speed display
- Electronic display features high-output bright white LEDs
- Visors and shades over LEDs produce superior visibility
- Electronic display has automatic dimming
- Remote and local control
- Selectable speed limit
- Full-color touchscreen controller with high-resolution display
- Controller at eye-level for comfort and ease of use
- Weather-resistant control box accepts user-supplied padlock
- Ballasted deck provides stability in high winds
- See-through design puts road workers in view
- Meets MUTCD
Power system
- Battery powered and solar charging
- Energy-efficient operation results in long run times
- Solar panel charges batteries automatically without intervention
- Charging system shuts down when batteries are fully charged, preventing damage
- Unique system allows battery charging with solar panel or shore power
- Battery box can be locked to prevent unauthorized access
Maintenance
- Individually replaceable display modules
- Standard trailer tires
- Bolt-on fenders can be replaced if damaged
- Durable powder-coat finish resists the elements
Options
Power
- Choice of batteries and solar
- 45-amp battery charger
Tow hitch
- Combo-hitch for 2-inch ball and 2 1/2-inch pintle hook
- Standard lunette ring for 2 1/2-inch pintle hook
- Heavy-duty lunette ring for 3-inch pintle hook
Some options may not be available for aftermarket installation. Please consult factory.
Latest product documents only. For older product documentation, please contact our customer service department.
Construction
Trailer
MIG-welded steel tubing
Coating
Powder-coated and oven-baked
Tires
ST205/75D15 radials
Speed limit sign
Size, W × H
48 × 60 in. (122 × 152 cm)
Material
Aluminum sheet, 0.080" (2mm) thick, with white high-intensity reflective coating
Work zone sign
Size, W × H
48" × 12" (121.9 x 30.5cm)
Material
Aluminum sheet, 0.080" (2mm) thick, with fluorescent orange high-intensity reflective coating
Electronic display
Resolution
Four white LEDs form each pixel
Pixel matrix
10 pixels wide by 7 high
28 × 19 in. (72 × 50 cm)
Displayed speed
One or two digits, from 5 to 95 in increments of 5
Character size
11 × 18 in. (292 × 457 mm)
Power
Batteries
Four Group GC2 deep-cycle batteries, wired for a 12-volt system
Battery capacity
430 Ah total
Solar panel
One 130 W panel
Specifications subject to change without notice.