When the MTA needed to modernize lighting across 15 subway stations, they turned to Clear-Vu. Purpose-built solutions for the harshest underground environments.
Subway tunnels, rail corridors, and underground stations punish lighting like nowhere else — water infiltration, brake dust, constant vibration, and 24/7 operation. Standard commercial fixtures fail in months. Our transit systems are engineered for it from the ground up.
MTLx tunnel fixtures carry IP66/IP67 ratings — fully dust-tight, sustained water-jet and submersion rated.
Vibration-resistant quick-connect mounting absorbs and dissipates energy across 50,000+ hours of pass-bys.
Marine-grade aluminum housings selected for coastal transit networks like NYC's subway.
3-step DALI dimming maintains evacuation-grade illumination on backup power.
clearNET self-healing wireless mesh delivers real-time fault detection across entire systems.
Our 31-page Driverless LED white paper has informed transit-agency specs nationwide.
Three integrated systems that work together to deliver complete transit lighting solutions — from individual tunnel fixtures to network-wide intelligent monitoring.
For rail-car interiors, station back-of-house, and existing fluorescent retrofits where the lighting infrastructure stays but the lamps need to evolve. Transit-grade safety construction, AC/DC/battery variants, and built to survive the daily shock and vibration of revenue service.
The Enhanced Station Initiative (ESI) represents one of the largest LED lighting modernization projects in mass transit history. When the MTA selected Clear-Vu as a core lighting partner, the scope was unprecedented: redesign the lighting infrastructure for 15 subway stations, each with unique architectural constraints and ridership patterns.
Clear-Vu's engineering team worked directly with MTA architects and safety engineers to develop over 20 distinct fixture products. Platform edge lighting required narrow-profile designs that could withstand train-generated wind loads. Mezzanine fixtures needed to meet both aesthetic design criteria and IP-rated environmental protection. Emergency egress pathway markers had to integrate with the 3-step DALI consequence management system to maintain wayfinding illumination during power events.
Every fixture in the ESI deployment is connected through the clearNET wireless mesh monitoring system, giving MTA operations real-time visibility into energy consumption, fixture health, and zone-level lighting control across all 15 stations. The result is a transit lighting system that is not only more energy-efficient and reliable than its predecessor, but one that provides the operational intelligence to manage and optimize performance continuously.
Three tunnel case studies spanning transit and vehicular environments — each with distinct compliance frameworks, operational constraints, and product specifications.
First major MTA MTLx deployment — approx. 4,000+ fixtures in the 1908 IRT under-river R-train bore. AC-driven architecture eliminates driver failures; clearNET wireless mesh without trackside cabling. NFPA 130 §8.4 validated.
Read case study NJ TRANSIT — Transit Tunnel & StationLED modernization of one of the oldest continuously operating light-rail tunnels in the US (opened 1935). Three-product system: MTLx in tunnel bores, LLS Linear for stations, Sentinel Guard for back-of-house — phased within overnight maintenance windows.
Read case study MTA Bridges & Tunnels — Vehicular TunnelPost-Hurricane Sandy rebuild of NYC’s 1.7-mile under-river vehicular tunnel. Flood-hardened MTLx fixtures with sealed housings and elevated driver positioning. SL-3923 emergency egress. NFPA 502 (vehicular tunnel standard) — not NFPA 130. FHWA 23 USC 313 Buy America.
Read case studyNFPA 130 sets a 0.25 fc minimum for emergency egress — a number that has barely moved in decades. Modern transit agencies are designing to far higher targets because the gap between code minimum and what people actually need to see is enormous.
Emergency egress code floor. Enough to find an exit — barely.
What inspection, maintenance, and CCTV coverage actually need. 20× the code minimum.
Where wayfinding, security, and first-responder visibility live. 40–80× the floor.
For rolling stock, signal-adjacent installations, and critical infrastructure where electromagnetic interference is a project requirement, we can deliver MTLx fixtures built and screened to MIL-STD-461. EMI compliance is engineered in at the driver, harness, and housing-shield level — not bolted on at the end.
Power-lead conducted emissions screened from 30 Hz through 10 MHz. Filters chosen to keep DC bus and rectifier byproducts off the train’s power feed.
Magnetic- and electric-field radiated emissions across the full vehicle-borne spectrum. Critical near track-circuit and CBTC equipment where stray emissions can desensitize signaling.
Survival under injected power-line ripple, bulk-cable current injection, fast transients, and damped-sinusoid lightning analogs. The fixture stays lit while the bus around it is being abused.
Operation under external magnetic fields and RF illumination from radios, traction inverters, and adjacent power equipment. No flicker, no dropouts, no reset.
Post-incident hardening expectations in dense urban transit drove an additional validation regime for fixtures specified in NYC tunnels and stations. MTLx tunnel fixtures have been validated against the NYC overpressure pressure-wave protocol — a transient-impulse test that mimics the structural and acoustic shock of a confined-space explosion.
Sub-millisecond pressure spike representative of a confined-space detonation in a tiled tunnel or station mezzanine.
Marine-grade extruded aluminum housing, captive tamper-resistant hardware, and gasketed end plates remain attached to the mount and to each other.
Cast polycarbonate vandal lens and hinge stay retained — no flying shards over egress routes — even under the post-event structural ringing.
Driver, harness, and integral emergency battery continue operating — maintaining egress illumination during and after the event window.
When utility AC drops in a transit tunnel, the train’s 600VDC traction-power bus is usually still alive long after the building feed is gone. Our patented hybrid fixtures cascade through three independent sources — AC → 600VDC traction power → internal 4-hour battery — so egress lighting stays lit through events that would dark a conventional emergency luminaire.
Three engineering-grade whitepapers for capital programs and chief engineers, plus a published op-ed from our CEO. Whitepapers require a corporate email; the op-ed is free to read.
Why legacy emergency lighting can’t meet modern NFPA 130 expectations — and how leading agencies bundle upgrades into capital projects already underway.
Get the whitepaper Whitepaper · Feb 2026NiMH vs. LFP vs. NiCd in the highest-stakes environment. How a battery fails matters as much as how it performs — especially underground.
Get the whitepaper Whitepaper · Mar 2026A close read of the patents and physics behind “Direct-AC” tunnel fixtures — and the $3M–$7M maintenance gap a 1,200-fixture install can hide over 25 years.
Get the whitepaperBy Daniel Lax, CEO of Clear-Vu Lighting. Why NFPA 130 should be a starting point, not the finish line. Free to read — no email required.
