Wednesday, September 12, 2012

Urban Freeways v. Suburban Bypass

Building the final link along Louisiana's Coast


While I’m obviously a firm supporter of a diversified transportation system and feel like the interstate funding has far superseded anything beyond (what I thought) taxpayer reality; I don’t discount interstate development at all. It is an important backbone to our economy. That’s why I fully support the I-49 extension between Baton Rouge and New Orleans (currently I-90). I mean, this should have been the actual route of I-10 because it includes much of Louisiana’s coastal infrastructure. So I see I-49 as a fairly critical link in Louisiana infrastructure. Thus, Lafayette is dealing with the bypass/inner-city freeway predicament.  Which is better?

On one hand, no one has dealt with an inner city freeway very well. Some places try to make parks under or above, some places try to bury the entire length, and some places just don’t care. There isn’t one place in this country where people “enjoy” living near the interstate. All other transportation infrastructure doesn’t really bother residents. Boulevards, Riverways, rail tracks, elevated transit, bike paths, etc. But the constant hum of the freeway is almost imposable. In addition (when above ground) it creates a nasty divide no matter which neighborhood it’s located in (upper/middle/lower class). There are some examples of minor mitigation, but I don’t know of any citywide efforts.

This has started a national trend of highway removal in urban areas (starting with San Francisco then Boston, and now a slew of other cities). But in our day and age, limited access freeways have to go somewhere. There are some great case studies of surface streets handling mass amounts of traffic, but it would be almost impossible to rid of the “interstate” culture.

So where do you direct the traffic? To a bypass/loop/beltway? Time and time again, this has been proven hugely ineffective for urban development. Yes it moves traffic (just) OK, but it also relocates entire sections of the city. Zoning laws and limited access can prevent some of these things. But it still draws away from economic development because people will chose to bypass the city for their destination.

So Lafayette is kind of caught in the middle. Do you mitigate the inner-city freeway? Do you do they bypass the city? Do they try a boulevard pilot project that deviates from Federal Interstate standards? Honestly, Acadian Thruway functions really well. But a bypass might take too much away from economic development inside the city (while also being hugely expensive).

At least Lafayette is being creative; down the road, Baton Rouge has (not) decided to build a multi-hundred (maybe billion) dollar loop. At the end of the day, it’s completely infeasible, and not one study shows how this will assist in traffic, economic development, etc. (Yes, it will be nice that one time traffic sucks so a driver can take the bypass; but is that really worth a billion dollars?)