The Los Angeles Times has recently reported that public transit agencies “have watched their ridership numbers fall off a cliff over the last five years,” with multi-year decreases in mass transit use by up to 25 percent. And a new UCLA Institute of Transportation study has found that increasing car ownership is the prime factor for the dive in usage.

As Homer Simpson would say, “Doh.”

Southern California residents bought 4 times as many cars per person in the 15 years after the turn of the century, compared to the decade before. That substantial jump in automobile ownership caused the share of Southern California households without access to a car to fall by 30 percent, and 42 percent for immigrant households. As one of the study’s authors, Michael Manville, put it “That exploding level of new automobile ownership is largely incompatible with a lot of transit ridership.” In other words, once a household has access to a car, they almost universally prefer driving to mass transit.

This patronage plunge threatens transit agencies. Typical responses echo Hasan Ikhrata, executive director of the Southern California Association of Governments, who said, “We need to take this study as an opportunity to figure out how we make transit work better for us.” In other words, we should ignore increasing access to automobiles and overwhelming revealed preferences for driving over mass transit, and find new ways to fill bus and train seats.

Many things are already in motion to solve transit agencies’ problems. For instance, in 2015, Los Angeles began a 20-year plan to remove auto lanes for bus and protected bike lanes, as well as pedestrian enhancements, diverting transportation funds raised from drivers and heightening congestion for the vast majority who planners already know will continue to drive.

Such less than effective attempts to cut driving by creating gridlock purgatory suggest we ask a largely ignored question. Why do planners’ attempts to force residents into walking, cycling and mass transit, supposedly improving their quality of life, attract so few away from driving?

The reason is simple—cars are vastly superior to alternatives for the vast majority of individuals and circumstances.

Automobiles have far greater and more flexible passenger- and cargo-carrying capacities than transit. They allow direct, point-to-point service, unlike transit. They allow self-scheduling rather than requiring advance planning. They save time, especially time spent waiting, which surveys find transit riders find far more onerous. They have far better multi-stop trip capability. They offer a safer, more comfortable, more controllable environment, from the seats to the temperature to the music to the company.

Those massive advantages explain why even substantial new restrictions on automobiles or improvements in alternatives leave driving the vastly dominant choice. They also reveal that policies which will punish the vast majority for whom driving remains far superior cannot effectively serve all residents’ interests.

The superiority of automobiles doesn’t stop at the obvious, either. They expand workers’ access to jobs and educational opportunities, increase productivity and incomes, improve purchasing choices, lower consumer prices and widen social options. Trying to inconvenience people out of their cars also undermines those major benefits.

Cars’ allow decreased commuting times if not hamstrung, providing workers access to far more potential jobs and training possibilities. That improves worker-employer matches, with expanded productivity raising workers’ incomes as well as benefiting employers. One study found that 10 percent faster travel raised worker productivity by 3 percent, and increasing from 3 mph walking speed to 30 mph driving is a 900 percent increase. In a similar vein, a Harvard analysis found that for those lacking high-school diplomas, owning a car increased monthly earnings by $1,100.

Cars are also the only practical way to assemble enough widely dispersed potential customers to sustain large stores with affordable, diverse offerings. “Automobility” also sharply expands access to social opportunities.

In all, attempting to force people out of cars and onto transit recycles earlier failures and harms the vast majority of citizens.

As Randal O’Toole noted: “Anyone who prefers not to drive can find neighborhoods ... where they can walk to stores that offer a limited selection of high-priced goods, enjoy limited recreation and social opportunities, and take slow public transit vehicles to some but not all regional employment centers, the same as many Americans did in 1920. But the automobile provides people with far more benefits and opportunities than they could ever have without it.”