The second essay assesses the effectiveness of the Air Quality Action Days program in the Baltimore metropolitan area in getting cars off the road on high ozone days. The program asks people to reduce vehicle trips on code red days when the ozone level is forecast to exceed the EPA's standard. I look at traffic volumes on highways in the Baltimore area, and using a regression discontinuity design, measure the extent that traffic is lower due to the announcement. I find that the program generally has little effect except that it reduces morning inbound traffic by 4--5 percent. Evening outbound traffic declines correspondingly.the samples diminish in size by two fifths, we still find evidence consistent with the baseline results Another test of the findings is to see whether similar reductions occur on other days, Code orange days mean an air quality alert to the public, anbsp;...
|Title||:||Two Empirical Essays in Environmental and Urban Economics|
|Publisher||:||ProQuest - 2008|