README.md

In departmentfortransport/webTRISr: A Wrapper Around 'WebTRIS' Traffic Flow API from Highways England

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 |

departmentfortransport/webTRISr documentation built on May 15, 2020, 5:03 p.m.