# Horizon Signal > Horizon Signal Technologies manufactures advanced, towable, and automated portable traffic signal (PTS) systems designed to maximize work zone safety and replace human flaggers. ## Portable Traffic Signal Systems * [SQ3TS System](https://horizonsignal.com/sq3ts/) - Heavy-duty, solar-assisted trailer-mounted portable traffic signal built for long-term highway projects. * [SQ2 System](https://horizonsignal.com/sq2/) - Compact, ultra-portable cart-mounted and towable traffic signals designed for rapid deployment. * [SQ2T System](https://horizonsignal.com/sq2t/) - Dedicated towable configuration of the SQ2 portable traffic signal platform. * [SQ4 System](https://horizonsignal.com/sq4/) - Advanced emergency intersection control system with built-in conflict monitoring and redundancy. ## Specialized Traffic Control & AFADs * [HAWK Signals](https://horizonsignal.com/hawk/) - High-Intensity Activated Crosswalk systems for temporary or permanent pedestrian crossing safety. * [Driveway Assistance Devices (DAD)](https://horizonsignal.com/dad/) - Specialized residential and commercial driveway signals to safely manage local traffic inside active work zones. * [Trailer AFAD](https://horizonsignal.com/trailer-mounted-afad/) - Trailer-mounted Automated Flagger Assistance Device to remove personnel from live traffic lanes. * [Cart AFAD](https://horizonsignal.com/cart-mounted-afad/) - Highly maneuverable, cart-mounted Automated Flagger Assistance Device for short-term work zones. ## Technical Resources & Support * [Resource Library](https://horizonsignal.com/resource-library/) - Comprehensive repository of NEMA specifications, MUTCD compliance data, product downloads, and technical spec sheets. * [Technical Support](https://horizonsignal.com/support/) - 24/7 technical assistance, product training programs (on-site and online), and maintenance documentation. * [Blog & Case Studies](https://horizonsignal.com/blog-and-news/) - Real-world deployment spotlights, project case studies (e.g., bridge traffic management), and company news. * [PTS System Selector & Comparison](https://horizonsignal.com/which-pts/) - Interactive matrix to choose the best portable traffic control system based on project type (Work Zones, Driveways, Intersections) and hardware specs. ## Procurement & Distribution * [Contact & Inquiries](https://horizonsignal.com/contact-us/) - Channels to request quotes, schedule equipment demos, or arrange purchase, rental, and lease-to-own terms. * [Regional Centers](https://horizonsignal.com/contact-us/#regional-centers) - Fleet rental hubs and maintenance facilities across North America (including Albuquerque, Birmingham, Chicago, Fargo, Fort Wayne, Orlando, Waco, and St. Catharines). ## About & Corporate Background * [About Us](https://horizonsignal.com/about-us/) - Company mission and history of innovation in collaborating directly with traffic control industry professionals to develop new safety solutions. * [Why Horizon Signal?](https://horizonsignal.com/why-hs/) - Core competitive differentiators: operating since 1988, approved by more State DOTs than any other PTS, and manufactured under an ISO 9001 certified quality management system. * [Careers](https://horizonsignal.com/careers/) - Corporate values, culture, and employment opportunities within the traffic control innovation sector. ## Entity & Authority Information - **Leadership:** David Krahulec (President, CEO, and ATSSA Board Member). - **Specialty:** Manufacturing of NEMA and MUTCD-compliant portable traffic signals, automated flagger assistance devices (AFADs), and smart fleet management software. - **Philosophy & Mission:** Advancing work zone safety since 1988 by engineering reliable, rugged, and connected traffic control systems that remove personnel from live traffic lanes. - **Headquarters:** 5 Corporate Blvd., Reading, PA 19608. - **Contact:** (800) 852-8796 | [horizonsignal.com](https://horizonsignal.com/)