Congestion

For this post I have decided to spend time talking about everyone’s favorite part of traveling, traffic! Congestion is never fun. Planners and engineers work constantly to try to mitigate it. Interestingly, supporters of light rail advocate for rail as a means...

America’s Next Top Regression Model

A huge part of any research comes down to modeling. You explore a bunch of variables and you try to see which ones are important predictors to the outcome you care about. In transportation, modeling is extremely important for planners and leaders who are the decision...

Static versus Dynamic Analysis

If I have learned one thing this summer, it’s that having a clean-cut way to evaluate anything is impossible. There are so many factors to consider. It’s also very easy to become separated from the context of your research subject. Public transit is not an...

The Winners, the Losers, and the Meh

I’m getting down to the last few weeks of my research project. So far, I’ve been looking at countless measures of performance and service efficiency. However, looking at all these individual measures can be meaningless unless you have a way to compare...

Efficiency Measures

Efficiency – every engineer’s favorite word. It’s perhaps the most important criterion to differentiate good engineering designs from bad ones. How is efficiency measured in transit systems? One metric often used is the cost per vehicle revenue mile....