Table 1 Overall Truck Count and Skirted Truck Count

How did you get here and what is this table? A quick explanation for the table is here, and a more complete one is there.

 

Month	Year	Trucks Daily	Aero Mod Trucks Daily	Aero Mod Trucks as a Percent of Daily Total	Fitted Data	Estimated trucks monthly	Estimated Aero Mod Trucks Monthly
May	2012	250	2.5	1.00%	Fitted	4500	45
June	2012	269	4	1.49%	Fitted	4842	72
July	2012	290	4	1.38%	Fitted	5220	72
August	2012	312	5	1.60%	Fitted	5616	90
September	2012	336	6	1.79%	Fitted	6048	108
October	2012	362	8	2.21%	Fitted	6516	144
November	2012	390	9	2.31%	Fitted	7020	162
December	2012	420	11	2.62%	Fitted	7560	198
January	2013	453	13	2.87%	Fitted	8154	234
February	2013	487	19	3.90%	Fitted	8766	342
March	2013	525	24	4.57%	Fitted	9450	432
April	2013	565	27	4.78%	Fitted	10170	486
May	2013	609	35	5.75%	Fitted	10962	630

 

Notes:

• As mentioned in the full study, for Table 1 Overall Truck Count and Skirted Truck Count seen above, I used five actual counts, created a 12 month fitted plot and then over wrote the original data not realizing how valuable it would be later in this project.  I am fairly sure that the last number is close to or even an exact real-world count.
• A typical number of work days for a (US) government employee, and thus commute days, can be calculated similar to the following:
  • 365 days a year, minus
  • 104 weekend days a year, equals
  • 261 weekdays, minus
  • 12 state holidays, minus
  • 3 administrative leave days, minus
  • 10 vacation days, minus
  • 5 sick days, and
  • No additional vacation from seniority or sick time, both of which are common, equals
  • 231 work days with probable commutes, divided by 12
  • Equals 19.25 work days a month, or just less than four five-day work weeks a month.

Updated May 13, 2016; Created September 23, 2015