If you peruse this data-dump every year, you’ll probably notice something: Despite the tireless efforts of transit planners, bike-lane boosters, and other actors in the mobility arena, the mode-share percentages don’t seem to budge much in the any given growing city as they add more people, despite massive investments in transit infrastructure. Take Dallas, Texas, for example: In 1996, that city opened the first stage of its light-rail network, which has since grown into the largest system in the U.S., at a total cost of something around $5 billion. But the share of commuters in the city who ride transit has remained below 6 percent since 1990.