webTRISr
A R package for the WebTRIS Traffic Flow API, from Highways England.
Feedback and contributions welcome - please raise an issue or pull request.
Installation
install.packages('webTRISr')or
install.packages('devtools')
devtools::install_github('RACFoundation/webTRISr')Examples
Reports
Reports can be downloaded, as data frames, using webtris_report()
webtris_report(sites=c('7', '24'),
start_date = '01012017', end_date = '01022017',
report_type = 'monthly-summary')#> Fetched page 1 of approximately 10000 rows| Month | SiteId | ADT24Hour | ADT24HourLargeVehiclesPercentage | AWT24Hour | AWT24HourLargeVehiclesPercentage | ADT18Hour | ADT18HourLargeVehiclesPercentage | AWT18Hour | AWT18HourLargeVehiclesPercentage | ADT16Hour | ADT16HourLargeVehiclesPercentage | AWT16Hour | AWT16HourLargeVehiclesPercentage | ADT12Hour | ADT12HourLargeVehiclesPercentage | AWT12Hour | AWT12HourLargeVehiclesPercentage |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| January 2017 | 7 | 1671 | 11.1 | 1938 | 12.3 | 1623 | 10.4 | 1883 | 11.5 | 1601 | 10.4 | 1860 | 11.5 | 1454 | 10.2 | 1686 | 11.4 |
| February 2017 | 7 | 1852 | 11.8 | 2119 | 13.1 | 1800 | 11 | 2060 | 12.4 | 1773 | 11 | 2031 | 12.4 | 1615 | 11 | 1846 | 12.5 |
| January 2017 | 24 | 37132 | 14.4 | 39949 | 16.7 | 35542 | 13.1 | 38199 | 15.3 | 34427 | 12.9 | 37085 | 15.1 | 29073 | 12.9 | 31366 | 15.2 |
| February 2017 | 24 | 40529 | 14.2 | 42703 | 16.6 | 38807 | 12.9 | 40825 | 15.3 | 37562 | 12.8 | 39595 | 15.2 | 31535 | 12.8 | 33112 | 15.3 |
All reports currently provided by the API are availble by changing the report_type argument. At present these options are: "daily", "annual-totals", "annual-monthly", "monthly-summary", "monthly-daily", "monthly-daily-aggregate", and "monthly-hourly-aggregate".
Areas
webtris_areas()| Id | Name | Description | XLongitude | XLatitude | YLongitude | YLatitude |
|---|---|---|---|---|---|---|
| 1 | A1 Darrington to Dishforth DBFO | A1 Darrington to Dishforth DBFO | -1.2548718 | 53.6827769 | -1.4461635 | 54.1543464 |
| 2 | A19 DBFO | A19 DBFO | -1.1123656 | 54.1535047 | -1.4906831 | 54.9749529 |
| 3 | A1M DBFO | A1M DBFO | -0.2339609 | 52.3604247 | -0.3283727 | 52.5347699 |
| 4 | A249 DBFO | A249 DBFO | 0.7725873 | 51.3280254 | 0.6602573 | 51.4419403 |
| 5 | A30/A35 DBFO | A30/A35 DBFO | -2.2118659 | 50.6913012 | -3.4654564 | 50.8130964 |
| 6 | A417/A419 DBFO | A417/A419 DBFO | -1.7172151 | 51.5279008 | -2.166667 | 51.8570205 |
Sites
webtris_sites()| Id | Name | Description | Longitude | Latitude | Status |
|---|---|---|---|---|---|
| 1 | MIDAS site at M4/2295A2 priority 1 on link 105009001; GPS Ref: 502816;178156; Westbound | M4/2295A2 | -0.5203796 | 51.4930115 | Inactive |
| 2 | MIDAS site at A1M/2259B priority 1 on link 126046101; GPS Ref: 514029;294356; Southbound | A1M/2259B | -0.3202755 | 52.5351578 | Active |
| 3 | MIDAS site at M5/7482B priority 1 on link 109001601; GPS Ref: 388120;253057; Northbound | M5/7482B | -2.1751383 | 52.1756518 | Active |
| 4 | MIDAS site at M3/2173A priority 1 on link 103009101; GPS Ref: 442770;118058; Westbound | M3/2173A | -1.3923737 | 50.9603586 | Active |
| 5 | MIDAS site at M25/5764B priority 1 on link 199056702; GPS Ref: 558308;188775; Anti-clockwise | M25/5764B | 0.2831616 | 51.5756168 | Active |
| 6 | MIDAS site at M27/9273A priority 1 on link 103009302; GPS Ref: 448516;111110; Eastbound | M27/9273A | -1.3114861 | 50.8974292 | Active |
Quality
webtris_quality(siteID = '2', start_date = '01012017', end_date = '01022017')#> Warning: attributes are not identical across measure variables;
#> they will be dropped| Date | Quality |
|---|---|
| 1483228800 | 100 |
| 1483315200 | 100 |
| 1483401600 | 100 |
| 1483488000 | 100 |
| 1483574400 | 100 |
| 1483660800 | 100 |