First draft transportation data source reports, tests

[eroten]

Lots of written content and documentation for transportation

• ! added STATE_ABB column to cprg_county, cprg_ctu
• ! testing for epa_moves, calibration dataset, DOT datasets,
• tinkered with TBI datasets, used updated values in LGGIT and updated outputs accordingly
• various heading changes, organization updates, citation updates
• added TBI average trip length by origin-destination county
• StreetLight
  • sample size tables
  • background on methods
  • new plots
  • made some fun widgets to visualize the distribution of trip length, commercial and passenger
• Fixed utility map rendering

Completed data source checklists for

• StreetLight
• DOT
• EPA MOVES

QUESTION: for whoever is reviewing this. I found that the AADT noted in class.xlsx is the raw version of the AADT, and the historic official AADT table reports the same number, just rounded to the nearest thousand. I could go back into StreetLight and update the AADT to match the official (rounded) value, but I'm not sure how much of a difference it would make. Thoughts?

closes #10

Checklist

Please complete this checklist as a courtesy to the PR reviewer.

Code and styling

• [x] All of the files/scripts I added are in the right place and named appropriately. See the README for details.
• [x] I have not used setwd()
• [x] I have used file.path(here::here(), "file_name")) to source any scripts or read in data
• [x] I have not added any large datasets, unless absolutely necessary (explain)
• [x] I have commented my code, particularly in hard to understand areas
• [x] I have added additional package dependencies as necessary with renv::install()
• [x] I have run styler::style_dir(".", recursive = TRUE, filetype = c("R", "qmd"))
• [x] Plots
  • [x] If plotly, use source = opts_current$get()$label in plot_ly()
  • [x] Use formatting with councilR::plotly_layout()?
• [x] Chunk formatting
  • [x] All chunks named
  • [x] All figure or table chunks have caption
  • [x] out.width: "95%". If a specific height is needed, use pixels. and/or out.height: "500px"

Document editing

• [x] I have ensured that modified documents knit successfully from render_for_publication.R
• [x] I have fixed any missing citations, cross references, hyperlinks
• [x] I have reviewed my contributions for typos and misspellings.

GitHub and project management

• [x] I have identified and assigned at least one Reviewer (Liz, Sam, Laine) to this PR
• [x] I have assigned myself to this PR
• [x] I have updated the status in the GitHub Project