Pre-Flight on the Blacktop

The Dawn Inspection

Eli: Around five in the morning at Waymo's Phoenix facility, autonomous minivans start prepping before passengers begin booking trips. Ellice Perez likened each vehicle's inspection to aviation prep: “It’s kind of like before a plane takes off, there’s a pre-flight check just to make sure that it’s safe and ready to go.” That depot discipline anchors our question: how Alphabet's driverless fleet scaled to 500,000 weekly trips while keeping public roads safe.

Mara: Today's angle is how Waymo scaled its operations to handle high volumes of driverless rides. The pace of that rollout was astonishing. Paid passenger trips multiplied tenfold in under two years. By March 2026, Waymo reached 500,000 paid rides every week.

Eli: That milestone initially covered ten metropolitan areas. By September 2026, new public services across Denver, San Diego, and Tampa pushed commercial operations into 14 cities.

Mara: Supporting that territory required building out a fleet of more than 4,000 vehicles. That active lineup combines electric Jaguar hatchbacks with dedicated minivans.

Eli: To frame that against traditional ride-hailing networks, incumbent Uber operates at roughly 400 times Waymo's weekly volume. Uber logged about thirteen and a half billion passenger and delivery trips in 2025 alone.

Mara: Even so, establishing that commercial foothold required 17 years of steady engineering. The journey began back in 2009 as the Google Self-Driving Car Project. It took until 2015 before the team completed its first fully autonomous trip.

Eli: And those early test vehicles were tiny, low-speed pods.

Mara: They were indeed. Google Auto assembled just 61 custom vehicles across 2014 and 2015. Except for vehicles not used on public roads, those prototypes were certified under federal low-speed vehicle standards.

Eli: Going from 61 low-speed runabouts to thousands of commercial vehicles in dense urban grids is a massive transformation. That leaves the central puzzle of how thousands of driverless cars navigate crowded city streets without a human backup driver behind the wheel.

The Redundant Engine

Mara: Waymo says its Driver is built for Level 4 autonomy, so it does the driving and stops safely without a backup driver inside. GM's SuperCruise and Ford's BlueCruise are Level 2 systems. Their drivers still have to pay attention and be ready to take over.

Eli: So the human safety net is gone, not just getting less to do.

Mara: Doing the whole job demands much more computing power than driver assistance. The sixth-generation sensor setup gives that computer several ways to see.

Eli: There are 13 cameras, for a start. Its 4 lidars send out laser pulses and use the returning light to map what's nearby.

Mara: Laser measurements, then, not just pictures of the road.

Eli: Tesla sticks to cameras, without lidar. Waymo also carries 6 radar units.

Mara: Those views overlap right around the car, reaching as far as 500 meters. The imaging radar tracks speed and height through rain, fog and dust, when cameras and lidar lose clarity. And the cameras have their own cleaning setup, with high-pressure fluid jets washing mud and road grime off the lenses automatically.

Eli: Clean lenses still don't help if the computer fails.

Mara: The computers show how Waymo's fail-operational redundancy works. There are 2 independent computing engines doing the job side by side, so if either develops a fault, the other takes over. The system uses custom 5-nanometer chips, packing microscopic circuitry close together to process data faster while using less power.

Eli: A whole second computer, already working. Not one waiting to be switched on.

Mara: Keeping the computer running isn't enough if the steering or brakes can't respond.

Eli: There's a second steering motor, with its controller and power supply separate from the main one. A complete backup braking system can stop the car safely when it's needed.

Mara: So the backup reaches beyond the electronics, right through to stopping the car.

Eli: A safe stop still doesn't get you through a complicated detour. When construction blocks the lane, the rider's question remains: can someone take the wheel remotely?

The Novi Advisor

Eli: No off-site driver is grabbing a steering wheel. Waymo avoids teleoperation, the practice of directly controlling steering and acceleration from a distance like an arcade simulator. Remote staff act strictly as contextual advisors when a car gets confused and requests help, leaving the onboard software to accept or reject that guidance.

Mara: In early 2026, around 70 remote specialists covered the entire network at any given moment. Those active vehicles numbered roughly 3,000 across the country, making it an astonishingly lean crew.

Eli: Ambiguous situations still leave room for human error to creep back in. On East Oltorf Street in Austin in January 2026, a Waymo halted behind a school bus before asking remote support if the bus had active signals.

Mara: An operator located in Novi, Michigan responded no. The robotaxi then pulled out and passed while the bus still had its safety stop arms out to load children.

Eli: Federal safety investigators concluded that human error led to the bus pass. The automated system paused properly on its own until faulty remote advice nudged it forward.

Mara: Systemic shocks trigger a much wider bottleneck than one confused operator. When a blackout hit San Francisco in late 2025, Waymo logged 1,593 stoppages lasting two minutes or longer. That concentrated wave overwhelmed remote queues, stranding over 60 robotaxis across city intersections until crews retrieved them by hand, occasionally obstructing first responders.

Eli: Mary Ellen Carroll, head of San Francisco emergency management, warned that city responders are becoming default roadside assistance for stalled driverless fleets.

Mara: Even through that municipal backlash, Waymo expanded across multiple cities while rival programs collapsed under scrutiny. General Motors slashed funding for Cruise after a 2023 collision severely injured a pedestrian, and California regulators suspended its testing permits over allegations of withheld video.

Eli: That permit suspension caused statewide driverless miles in California to plunge to 550,000 in 2024. Then Apple shuttered its autonomous vehicle project that February after logging 850,000 test miles.

Mara: The open question is whether its layered machine genuinely outperforms the safety record of an everyday driver.

The Claim File Yardstick

Eli: To judge whether driverless cars truly beat human drivers, researchers compare them against an actuarial baseline, checking real insurance claim payouts to calculate risk. Reinsurer Swiss Re, which covers insurance companies to help spread their risk, examined more than 500,000 claims. That human baseline represented 200 billion miles of driving.

Mara: Against that standard, Waymo logged 88% fewer property damage claims. Claims for bodily injury fell by 92%. Waymo safety chief Mauricio Peña highlighted insurance claim files as an effective yardstick for judging autonomous safety.

Eli: A 92% drop in injury claims.

Mara: An Insurance Institute for Highway Safety study found an 81% reduction in injury crashes per mile. Compared with modern cars equipped with automated emergency braking and lane assistance, injury claims still dropped by 90%.

Eli: That advantage appears real, but it applies strictly within the operational design domain, meaning the mapped boundaries and fair weather where the vehicle is certified to operate. Waymo steers clear of mountain roads, and it stops running when faced with flooded streets or accumulating ice and snow.

Mara: So it filters out the most treacherous conditions.

Eli: Researcher Matthew Raifman observed, Autonomous vehicles are likely quite safer than human drivers for most driving conditions, but that is within the context of where the AVs are allowed to operate today. Crash data also showed that 70% of Waymo's collisions in 2025 occurred while stationary or parked.

Mara: Getting bumped while stationary is one thing, but the driving software also makes mistakes while rolling.

Eli: Federal regulators opened a formal investigation in May 2024. The agency looked into 22 incidents of unexpected driving behavior, including crashes into parked vehicles, stationary gates, and chains.

Mara: Scrutiny was followed by a recall of 3,871 vehicles in 2026. In May 2026, seven robotaxis slipped between traffic cones and entered active freeway construction zones across the Bay Area.

Eli: Even so, the fleet produced far fewer human casualties across its approved routes. The unresolved question is whether maintaining thousands of specialized cars with round-the-clock depot crews and remote guides can ever become commercially profitable.

The Industrial Margin

Mara: Scaling that safety record commercially meant tackling manufacturing costs first. In Mesa, Arizona, Waymo teamed up with Magna on a 239,000-square-foot integration facility, where technicians assemble autonomous sensors and computing gear directly onto base vehicles.

Eli: Waymo's operations vice president, Ryan McNamara, called that site the "epicenter of our future growth plans," built to provide the "capacity to scale our fleet to new heights."

Mara: And that factory floor paid off quickly. Waymo reported its sixth-generation sensor suite dropped below 20,000 dollars per car, or roughly 18,000 euros.

Eli: Cheaper sensors help, but depot operations stay costly. Waymo brought in Element Fleet Management to oversee charging, maintenance, and vehicle lifecycles, but depot labor adds up. Diagnostic technicians earn up to 45 dollars an hour, while cleaners in Miami must manage vomit and blood under biohazard standards.

Mara: A grim assignment, though that fleet backbone keeps municipal first responders from turning into default roadside help. But it tests unit economics, which is simply whether an individual robotaxi can turn a profit once you factor in hardware, charging, and maintenance.

Eli: Right now, the numbers look harsh. Alphabet's Waymo division posted a 1.17-billion-dollar operating loss in late 2024, and researchers found each robotaxi in Los Angeles lost 34,000 dollars annually.

Mara: Thirty-four thousand dollars in the red for a single vehicle.

Eli: And that loss comes even with cars operating 18 to 20 hours each day, while typical personal rideshare cars only drive for four to six.

Mara: Yet passenger demand can absorb those hours. In Austin, Uber's chief executive reported 100 Waymo vehicles beat the daily trip totals of 99 percent of human Uber drivers in the city.

Eli: That relentless utilization is how Waymo scaled to 500,000 weekly paid trips. When that massive industrial machine clicks, it delivers on what Ellice Perez told us back at the Phoenix depot: driverless transit "just works."

Mara: And the real promise behind that machine is human safety. Human error plays a part in 94 percent of U.S. crashes, in a country where nearly 41,000 people died on roadways in 2023.

Eli: That drop in injury crashes we saw earlier shows what the driverless system can achieve. The remaining question is whether Alphabet's capital can sustain those depot losses until the fleet pays for itself.

Mara: Read up on fail-operational redundancy.

Eli: And follow robotaxi services with us as driverless fleets expand into new cities.

Mara: That's it for today. I'm Mara.

Eli: And I'm Eli. Thanks for listening, and until next time on Angle.