road-eda.qmd

---
title: "TIGER Roads"
date: last-modified
format: 
  html:
    code-fold: true
engine: knitr
---

Requirement: 

> Roughly estimate route miles of potential deployments


## what is inside the data:

We have linestrings with those attributes:

- `linearid`: primary id, used by ither TIGER product

- `fullname`: road name, humane-readable

 
- `rttyp`: route type code, type of road. 

| Route Type Code | Route Type Code Description |
|--- | ---- |
| C | County |
| I | Interstate |
| M | Common Name |
| O | Other |
| S | State recognized |
| U | U.S. |

- `mtfcc`: MAF/TIGER Feature Class Codes, example, S1400  (Local Neighborhood Road,
Rural Road, City Street)

### Classes of Roads according to TIGER/line census 
::: {.column-margin}
TIGER: Topologically Integrated Geographic Encoding and Referencing
:::

|mtfcc|Features|
|--- |----|
|"S1100"|Primary Road |
|"S1200"|Secondary Road|
|"S1400"|Local Neighborhood Road, Rural Road, City Street|
|"S1500"|Vehicular Trail (4WD)|
|"S1630"|Ramp |
|"S1640"|Service Drive usually along a limited access highway|
|"S1710"|Walkway/Pedestrian Trail |
|"S1720"|Stairway |
|"S1730"|Alley|
|"S1740"|Private Road for service vehicles (logging, oil fields, ranches, etc.)|
|"S1750"|Internal U.S. Census Bureau use|
|"S1780"|Parking Lot Road|
|"S1810"|Winter Trail |
|"S1820"|Bike Path or Trail |
|"S1830"|Bridle Path|

## Should this information provided and how?

We should probably not keep the bridle paths?

Should it be provided at block level: ie an estimate route miles?

How the user will interact with it?

### Resources 

- https://www2.census.gov/geo/pdfs/reference/mtfccs2020.pdf

- https://www.census.gov/library/reference/code-lists/route-type-codes.html