For critics of widening projects, the prime example of induced demand is the Katy Freeway in Houston, one of the widest highways in the world with 26 lanes.
Immediately after Katy’s last expansion, in 2008, the project was hailed as a success. But within five years, peak hour travel times on the freeway were longer than before the expansion.
Matt Turner, an economics professor at Brown University and co-author of the 2009 study on congestion, said adding lanes is a fine solution if the goal is to get more cars on the road. But most highway expansion projects, including those in progress in Texas, cite reducing traffic as a primary goal.
“If you keep adding lanes because you want to reduce traffic congestion, you have to be really determined not to learn from history,” Dr. Turner said.
Just one more lane bro, I swear it’ll fix traffic. Just one more lane.
snorts asphalt
The intended purpose isn’t to fix traffic. It’s supposed to allow more volume of cars through per day. Entirely different things.
I’m not suggesting that’s a good thing.
Just a little more trickle down bro, I promise once we privatize the next utility it will all work.
The fools, if they had made in 27 lanes they would have been fine!
27 is an odd number, do I assume the center lane switches direction for rush hour. That’s sure to fix it.
27 lanes in each direction.
But think of the alternative. In Japan the trains arrive every 10 minutes are publicity subsidized so cost is minimal and because of this there exists an entire generation of train nerds that just want to go out and photograph trains. Are you gonna let the nerds win?
I’m all for trains and against cars, but is Japan really the best example? Don’t they have people stuffing passengers into cars with special passenger packing sticks?
In Tokyo there are 20 million people
The yamanote line at peak hour has a lot of folks, it’s true
But if these 20 million people were in cars? My friend the entire city would be a gigantic 100 lane highway and things would be significantly shittier I guarantee
Trains are the solution and america is insane for ripping up lines to force people to buy cars
And yet we hear the argument that when it comes to cycle lanes the opposite is true, the more you add the less they are used.
Simply make it a single flat wide open surface, drive where you’re trying to go in a straight line.
If you die, you die.
Yes. This is the basic driving style on the Katy. No rules, no lanes. Just wide open spaces, bumper to bumper at a minimum of 75 mph. On a good day.
For anyone wondering what that looks like-
Absolute insanity.
Where are the bridges? How do you walk from one side to the other?
Oh yeah, right, of course. But how do you even drive from one side to the other?
Walk? In Houston? Nope.
You don’t really… You exit and follow the service road until you find a way to get across, usually by going under.
I hate driving in Texas because this kind of shit is everywhere. Middle of nowhere and want to get to the rest area ahead? Exit and follow the service road for a mile.
I feel like Texas intentionally did that so that everything seems large af. If the exit road is long af then it must make you feel like the place is large when in reality it is just inefficient spaghetti
Yup. Been plenty of studies to show that increasing lanes only alleviates traffic in the short term and long term only makes it worse. Better to spend money on trains and busses that actually work and get people where they need to go with minimal hassle and a reasonable cost than to do this crap.
to me it’s like the military industrial complex - they don’t care what evidence supports, they want their fucking money and they’ll keep building roads until it’s a giant parking lot from sea to fucking sea. we could have an ecosystem, but fuck you, because cars.
I already see the angry republicans on Fox news raging on how their precious tax dollars are being wasted just to benefit poor people
trains and busses that actually work and get people where they need to go with minimal hassle and a reasonable cost
Trains predate cars and busses have always been with us since the car. People have voted – with their cars.
The Interstate Highway System started in the 1950s. Population has more than doubled since then. Of course, we have more traffic, we have more people!
The auto industry lobbied to kill public transportation back in the day to sell more cars. For a recent example see Ellen Musk and the Hyper Loop.
Why, oh why didn’t they build 27 lanes?!?
99% of urban planners stop just one lane short of permanently solving traffic for good.
The highway has greater capacity, and that’s a good thing. The congestion would be far worse if it hasn’t been widened, and the increased capacity helps the local economy.
This is an article also about Houston’s freeways and traffic; induced demand is the reason congestion is not lessened in these situations:
The infuriating bit is that the evidence is pretty clear: these are deeply misguided policies. While it seems intuitive that the solution to three lanes of gridlock is to spread the same number of cars over four lanes, it fails because of a phenomenon called induced demand.
Please stop adding more lanes to busy highways—it doesn’t help
This is explored extensively in the book ‘Traffic: Why We Drive the Way We Do (and What It Says About Us)’ by Tom Vanderbilt. I highly recommend it; it’s excellent and very informative about this widely misunderstood topic.
Getting more cars off the road using things like better public transportation is the answer here, something that is sadly lacking in Houston…yet they keep widening roads. It never helps, and it never will.
By definition, if the road has more capacity, it is helping. It just isn’t helping enough to eliminate traffic. Unless you’re claiming that the larger freeways have the same capacity as the smaller ones, which doesn’t really make sense.
I think you’re intentionally missing the point, so I’m gonna go about my day now. But feel free to check out either of the sources I linked if you want to learn why bigger roads don’t reduce congestion. :)
Yeah, you didn’t read what I wrote, you just chose to be an arrogant ass. Fucking hell, you people are dickheads.
Who knew that adding complexity to a system entirely reliant on millions of autonomous drivers who only communicate with each other through lights, horns, and middle fingers would slow things down.
Lived out there for a few years and i can tell you no one is communicating through the lights on their cars.
This is because the extra lane allows demand to change. It is not congested so people feel ok building and moving to further out suburbs. This continues until demand has increased to cause delays.
Note that Houston and Paris have about the same population. Paris is 1/3 the size. They are actually removing a lane from their loop highway and planting trees, and turning another lane into busses only. Only considering transportation, I would much rather live in Paris.
If you also consider the weather and politics, I would still much rather live in Paris.
Food and culture, also Paris
Houston has fantastic food. I will die on that hill.
I’ll die on that hill with you. Most likely from self-induced health problems from loving the good food here too much, but for all the crap that we deal with the good food is a plus.
