Technology integration partner to Streetline and ZDEVCO
TPAS, the truck parking availability system, is a Streetline application. ZDEVCO, Streetline's sister company, leads port, drayage and enforcement programs. ITS Roads works with both as their technology integration partner: we engineer the roadside, install it, connect it and operate it, in eight states and counting. The applications are theirs; the integration and delivery are ours.
Everything between the platform and the pavement
Streetline's TPAS cloud platform classifies each space as open or occupied from camera images and publishes availability to signs, 511, ATMS and a driver app. ITS Roads does all the systems engineering around it: site surveys, camera selection and placement, cabinet and power design, cellular and fiber networks, sign integration, state product-approval packages, estimating, installation support and remote operations.
- Site design: fixed detection cameras covering every space, PTZ verification cameras, pole and cabinet locations
- Roadside cabinets with PoE switching, cellular or fiber routers, surge protection and remote power control
- Dynamic sign integration over NTCIP/SNMP, multi-insert mileage signs and solar sign systems
- NTCIP 1206 and 2306 feeds to state 511 and ATMS platforms, including SunGuide
- Product-approval dossiers, cybersecurity plans and Section 889 attestations for state DOTs
- Cost estimates and bid support for corridor-scale deployments
- Remote operations: camera health, router hardening, switch management, preset maintenance, cellular account audits
Where Streetline's TPAS runs with ITS Roads as integration partner
| Corridor | Scope | ITS Roads role |
|---|---|---|
| I-10, California (Caltrans) | Rest-area camera detection and digital truck-parking signs across the desert corridor, independently evaluated by a university partner over more than a year | Systems engineering, network design, remote operations and camera testing |
| I-10, Arizona (ADOT) | Eight rest-area camera sites and seven sign sites with cellular routers, managed PoE switches, remote power control and multi-display signs; expansion design for a 44-camera rest area with solar and NEMA 3R cabinets | Design, estimating, remote operations: switch re-addressing, router hardening, PoE reboots and power audits from Virginia |
| I-10, Florida (FDOT) | Seventeen-camera rest-area system on DOT fiber with VPN and ATMS integration; statewide product-approval package for the detection system | Design, test reports, approval dossier, integration support |
| I-90/94, I-39/90, I-43, Wisconsin (WisDOT) | Fourteen camera sites with per-preset space counting over cellular; legacy PTZ migration to new cameras; fleet-wide cellular router assessment | Camera monitoring, remote reboots and presets, router assessment and remote fixes |
| I-95, Maryland (MDOT) | Lightweight welcome-center pilot from a single light pole with two cameras and per-stall AI occupancy | Design, build, installation and dashboard |
| Washington (WSDOT) and Georgia (GDOT) | Deployed pilot evaluated by a university partner; statewide turnkey TPAS bid that earned the highest technical score | Systems engineering and bid support |
A solar camera node one technician can install in under half an hour
Many rest areas have light poles but no spare circuits, conduit or budget for trenching. In 2026 our lab prototyped a stand-alone solar camera node that straps to an existing pole with stainless banding, captures and uploads images over LTE on a schedule, sleeps between captures, and keeps a measured ten days of reserve through cloudy weather, with a fleet portal for firmware and commissioning. Commercial off-the-shelf parts only, so a DOT can source replacements. That is how we prototype: build it, measure it, then decide.
Solar sizing for roadside equipmentParking systems FAQ
Is TPAS an ITS Roads product?
No. TPAS is a Streetline application and the platform belongs to Streetline. ITS Roads is Streetline's technology integration partner: we provide the systems engineering, design, estimating, installation support and network operations that put it on the road and keep it running. Full credit for the application goes to Streetline; the integration is ours.
Who are Streetline and ZDEVCO?
Streetline builds TPAS, the truck parking availability application, along with parking and gate-counting products. ZDEVCO, its sister company, leads port, drayage and enforcement programs. ITS Roads works with both as a technology integration partner and delivery team.
What is a truck parking availability system?
A TPAS (also called TPIMS or, in Florida, a truck parking detection system) counts open truck spaces at rest areas and truck lots in real time and publishes the count to roadside dynamic message signs, 511 traveler information, ATMS platforms and driver apps so that drivers can plan a legal stop before they reach the exit.
What if the rest area has no power or fiber?
We deploy solar-powered camera nodes and sign systems with cellular backhaul. Our research and development program has produced a one-technician, strap-to-the-pole solar camera node with measured multi-day battery reserve.
Who operates the system after installation?
ITS Roads provides remote operations for the partner's deployments: camera health monitoring, router and switch management, preset and firmware maintenance, cellular account management and periodic assessments, from our Washington, DC-area network operations center.
Ready to scope it?
Send us the corridor, the site count and the problem. We will come back with an approach, not a brochure.