Ask most people in Leucadia what "quiet zone" means and they'll tell you it means an end to the horns. That's the promise embedded in the phrase, and it's been circulating around the neighborhood for years attached to a project residents have watched crawl through public meetings, engineering phases, and grant applications since 2019.
What actually got approved this year is narrower than that promise. The trains still coming through Leucadia Boulevard from the north will keep sounding their horns for the foreseeable future, no matter how the current round of approvals shakes out. The mechanism behind that asymmetry is the part nobody explains clearly, and it's worth understanding if you live within earshot of the tracks.
What the CPUC Actually Approved in February
For decades, the 1.3-mile stretch of active rail line between Leucadia Boulevard and La Costa Avenue has had no legal way to cross on foot or by bike. People do it anyway, stepping over live tracks with no gates and no warning devices, because the alternative is a long detour around.
On February 5, 2026, the California Public Utilities Commission voted unanimously to approve the city's application for two new at-grade pedestrian and bicycle crossings in that gap, one at Phoebe Street and one at Grandview Street. The vote followed a preliminary ruling from an administrative law judge in late January, which the city's own project manager described as the first real hurdle cleared in a process that has moved slowly for years.
Approval doesn't mean shovels in the ground. The project now moves past its 35 percent design phase, and in June 2026 the City Council allocated an additional $300,000 toward final engineering as part of its capital improvement budget. According to the city's own timeline, full design is targeted for completion by the end of 2026, with construction funding needing to be secured by early 2027. Anyone picturing a finished crossing by next summer is picturing a faster process than the one actually underway.
The Word "Quiet" Is Doing a Lot of Work
Federal rule requires locomotive horns to sound for 15 to 20 seconds before every public grade crossing, at a volume between 96 and 110 decibels, roughly the range of a jackhammer. A quiet zone is the formal exception: a stretch of track at least half a mile long where that horn requirement is lifted, provided the crossings inside it meet upgraded safety standards.
Encinitas has been pursuing exactly that designation for the corridor running from Leucadia Boulevard north toward the Carlsbad line. The catch, laid out plainly on the city's own project page, is that a true quiet zone north of Leucadia Boulevard can't happen without Carlsbad's cooperation, specifically safety upgrades at Carlsbad's Cannon Road crossing to compensate for the missing horn. Carlsbad has not agreed to make those upgrades.
The practical result is directional. A train heading north out of Encinitas toward Carlsbad would no longer need to sound its horn approaching Leucadia Boulevard. A train heading south from Carlsbad into Encinitas would still be required to blast its horn at that same crossing, because the missing piece sits on the other city's side of the line.
| Train direction through Leucadia Blvd. | Horn required today | Horn required if the quiet zone is approved |
|---|---|---|
| Northbound (Encinitas toward Carlsbad) | Yes | No |
| Southbound (Carlsbad toward Encinitas) | Yes | Yes, until Carlsbad upgrades its Cannon Road crossing |
Half the trains going quiet is a real improvement. It is not what most people mean when they hear "quiet zone."
Wayside Horns Are the Compromise, and They're Not Silent
Where a full quiet zone isn't feasible, the city's fallback is wayside horn technology, already installed in Del Mar and in San Clemente, where a stationary, train-activated horn aims sound directly at the road or path instead of blasting down the full length of the corridor. It's designed as a one-for-one substitute for the horn on the locomotive itself.
It is also not quiet in any everyday sense. Wayside horns run at a minimum of roughly 92 decibels, close enough to the federal 96-to-110 range that the difference is more about direction than volume. If you've driven through Del Mar and noticed the horn sound different there than the horn on an approaching Amtrak train elsewhere on the line, that's the technology in question.
Two Community Groups, Two Different Bets
The disagreement over how to weigh that tradeoff has split into two organized camps.
NOWLeucadia has pushed the city to fund and prioritize the at-grade crossings now, treating wayside horns as an acceptable near-term step while continuing to press for the fuller quiet zone extension into northwest Leucadia. Their position is essentially that a safer, legal crossing today, even with a wayside horn attached, beats years more of informal, unsignaled crossings while a perfect fix is negotiated.
BetterCrossingsLeucadia argues that framing understates the noise problem. By their count, roughly 54 trains already move through this corridor daily, and combining the two new at-grade crossings with the existing Leucadia Boulevard crossing could mean up to 648 horn events a day across all three, using the federal four-blast pattern per crossing. The group also points to projected growth in LOSSAN corridor rail traffic that could double volume by 2035, and argues the city should hold out for a grade-separated undercrossing or overpass instead of building infrastructure around a horn that never fully goes away.
Both groups want safer crossings. They disagree on whether an at-grade solution with wayside horns is a genuine fix or a permanent half-measure that locks in decades of noise.
What Actually Changes for Someone Walking to the Beach
Set the noise debate aside for a moment and the crossing itself is the more immediate change. Right now, getting from the east side of the tracks to Beacons or Grandview beach access on foot means stepping over an active rail line with no gate, no signal, and no legal standing if something goes wrong. Once built, Phoebe and Grandview will have marked, gated crossings designed to federal safety standards.
That part of the project is worth the wait regardless of how the horn question resolves. What isn't guaranteed is a quiet corridor anytime soon. Between the design timeline, the funding gap, and the unresolved question of Carlsbad's cooperation, anyone hoping the horns disappear entirely in the next year or two is likely to be disappointed no matter which side of the debate turns out to be right.
If you're the kind of person who tracks these things block by block, the city's own project pages are updated as design milestones clear, and it's worth checking back before assuming either side has already won the argument.
Questions about what daily life actually looks like on a specific street in Leucadia, tracks or no tracks, are the kind of thing Pacific Harmony Realty fields regularly from people who already live here and people thinking about it. If you want a candid, no-pressure conversation about a neighborhood you already call home, schedule a free consultation or ask for a complimentary home valuation any time.
