Driving to LA? Your empty seats are going anyway

You are making the drive south anyway. Classes let out, the long weekend starts, and you point the car at the valley with three empty seats behind you.

Those seats are going anyway. That is the whole argument for filling them, and it is worth ten minutes before you leave.

The next holiday on the university's calendar that actually makes a weekend is Thanksgiving. UC Davis lists it as November 26–27, 2026 (UC Davis) — a Thursday and a Friday. So this is a real decision with a date on it, not a thought experiment.

Here is what changes about the drive when three people are in the car, and what does not.

Two in the car puts you in the carpool lane

The statewide rule is simple. "Motorcycles, mass transit, and vehicles with two or more (2+) occupants are allowed to access HOV lanes during their operational hours" (Caltrans). An occupant is anyone in a seat belt. Passengers count. One other person is usually enough.

Three things temper that, all from the same page.

Some routes want three. Caltrans names I-80 and I-880 in the Bay Area, the I-10 El Monte Busway at peak hour, and I-5 at San Ysidro as 3+ routes, and says "signs along the highway will specify the enforcement policy for each route" (Caltrans). Read the signs on every route you are actually on.

The hours split the state in half. In Northern California the lanes are only operational Monday to Friday in posted peak hours, and everyone may use them off-peak. In Southern California they are in effect 24 hours a day, seven days a week (Caltrans). A Friday afternoon departure leaves under one regime and arrives under the other.

The old workaround is gone. The clean-air decal exemption that let a solo driver use the lane expired on September 30, 2025 (Caltrans). Occupancy is the rule now.

One honest caveat: this page is not a road-by-road survey of your drive. Plenty of miles between here and there have no carpool lane at all. The signs beat this paragraph.

Riders chip in for a trip you were making anyway

You are not selling seats. You are recovering part of the cost of a drive that was already happening. That distinction is the entire structure of TAGO, not a turn of phrase.

There is a ceiling on what a rider contributes, and it is the federal one: the IRS standard mileage rate for the day of the trip (IRS), times their miles. The IRS sets that rate and revises it — 2026 has two of them on the IRS's own table — which is why no figure appears on this page. Any figure printed here would be wrong for some trips.

That rate exists to cover what a car costs to run over time: maintenance, depreciation, insurance, wear. It covers the whole cost of running a car over time, not one line item on the day, and it is a ceiling on recovery rather than a floor under it. The arithmetic cannot leave you ahead. Nobody's making a profit. That's the point.

The rest of the model — per seat, per mile, and why a long drive costs less per mile than a short one — is laid out in how ride costs split.

Riders get dropped at a stop on your route, not across town

This is the part most drivers assume wrong. You are not agreeing to deliver three people to three addresses across a metro area at the end of a long day.

A rider is dropped at a transit stop that already sits on the route you were driving. From there they are on their own, on a system that goes where they are going. The LA end of this corridor on TAGO is the LAX page — that is the southern anchor people post against, whether or not a flight is involved.

Pickups work the same way, and you set the point. Somewhere on your way out of town, at a time you chose, not a doorstep you have never heard of.

Your route does not bend. If it bent, none of this would be worth doing, and you would stop doing it after one trip.

You rate them. They rate you.

At the end of the trip you rate your riders — how they treated your car, how the ride actually went. They rate you back. Same thing in both directions, every trip, no exceptions.

It is worth saying plainly because the one-sided version is what people expect, and it is not what happens here. Everyone in the car signed in with a .edu email, and everyone carries a record from the trips they have already taken.

What does not change

The drive is the same drive. Same route, same stops, same music. You leave when you were leaving, because the trip was yours first and the seats are the leftover.

What changes is the lane, part of the cost, and three people who did not otherwise have a way south.

There is no promise that anyone takes the seats. You post the trip and see who is going your way — that is the honest version, and it is why posting early beats posting the night before. Sign in with your .edu and put them up as soon as you know you are driving.