Saturday, February 1, 2014

The Positive Prospects Of Traffic

       

          We have all been there on that hot day headed to the beach, or the rainy day en route to our in-laws, or just about anywhere, and you can do nothing but creep along the freeway inch by stressful inch as you slowly come to terms with the reality that there is no way you can be on time.
          Traffic never travels a fluid fifteen miles per hour either, rather it composes itself of an endless series of inconsistent starts and stops whose purpose can only be to make sure that you’re not becoming numb to its charms by zoning out. Traffic delays are terrible. Worse though is the habitual and voluntary traffic ridden commute that characterizes so many of our lives. In light of the countless mornings and evenings on the same route commuters can likely predict with uncanny accuracy when they will arrive at their destination, give or take a red light here or there. So why is this particular drive still so stressful? Certainly it has something to do with the opportunity cost of sitting purposelessly on the road rather than sleeping in or spending time with the family (a feeling of loss), but I think some insights from behavioral economics will go a long way toward calming traffic nerves and helping to create a smoother commute by pointing to the way our brain deals with the dynamics of traffic.
           
First, would you rather get $900 outright, or have a 90% chance to gain $1000?

Next, would you rather lose $900 outright, or have a 90% chance to lose $1000?
           
          If you’re like most people you probably took the sure-thing $900 in the first question and chose to take a chance in the second. Another one: would you accept a bet where in heads you receive $150 but in tails you lose $100? At what point would you take that bet? Maybe if you could gain $200 and lose $100 at a 2:1 ratio?

          As humans we are risk averse, meaning we pay more attention to negatives and losses than we do to positive outcomes and gains. It hurts more to lose than it feels good to gain.  Also, we tend to peg our frame of reference from which we judge loss and gains to some sort of baseline. If our former job paid us more than our current job we will feel a sense of loss since we have pegged our earning expectations on that past figure. These ideas form part of the basis for Prospect Theory…so how does it apply to traffic?       

          When we first get on the freeway we generally select the best lane at that time. Although this bit of progress is merely a snapshot of the overall undulation of traffic it serves for us as a baseline, an instance where we were moving faster than the other cars around us. There is an optimal fast lane when the freeway is moving at average speed, so one of these few lanes must necessarily be moving faster than the others, right? Just as the lane we chose begins to come to a stop the lane next to us that we had just come from, including that red Dodge Caravan we were behind, goes steadily past us. Ouch, I should have stayed there. This back and forth is one of the enduring stresses exacted upon the commuter every day, but with Prospect Theory it makes sense.

          With our baseline, or even without it, we expect to be moving faster than the majority of the rest of traffic; we chose the fastest lane didn’t we? Passing other cars is good but normal, impossibly stressful though is when we get past. Gain versus loss. The loss we feel from being left behind far outweighs what we felt when we were doing the passing, if we even realized we were ‘winning’ at all. Our aversion to loss often forces us into the other lane in search of gaining ground, only to have the lane we just came from whiz past us as the traffic accordion expands and contracts. Stress! It doesn't help our cause that when we get passed we can see all the cars go by and keep an eye on them until they have gone out of view, whereas when we are in the lead every car we pass falls out of sight and mind almost immediately. How often after you pass a car in traffic do you stare at them in your rear-view mirror?

          Internalizing Prospect Theory and applying it to the daily commute leads to this prescription: disregard the ebb and flow of traffic because you will disproportionately pay attention to the feeling of loss when cars go by than you will to the gain of being in the correct lane at the correct time. And this doesn't just go for the daily commute, there are limitless applications that can help you be patient and relaxed! People say that they have bad luck and always pick the slow lane when checking out at the grocery store, and if it’s not you saying that you at least know someone who does. But think of the sheer amount of times that you have checked out without incident. Those don’t stick out nearly as much as the times we felt loss. And it is absurd to believe that of the eight check-out stands we can see ours should be the fastest, always, yet the strong aversion to loss helps us to feel this way. Ultimately if we realize our brains are tuned more into the channel of loss aversion we can recalibrate it and move toward a mindset that celebrates the gains and doesn't disparage disproportionately at the losses. And anyway there are other things you could be thinking about, like water.

Deeper: Prospect Theory comes from Nobel Laureate Daniel Kahneman. His book Thinking Fast And Slow is one of the most important you will ever come across. After I had thought about this application to traffic I heard it explained in the audiobook version of Traffic: Why We Drive the Way We Do by Tom Vanderbilt during my morning commute. I imagine it came to him too while sitting in traffic…