Road Emission from Traffic

Compute road emission noise map from road table.

Overview

➡️ Compute Road Emission Noise Map from Day Evening Night traffic flow rate and speed estimates (specific format, see input details). ✅ The output table is called: LW_ROADS

Arguments

Mandatory inputs

tableRoads — Roads table name

Name of the Roads table. If you provide the PERIOD field you do not provide the fields with the extension _D _E _N. This function recognize the following columns (* mandatory) :

  • PK : If there is a primary key defined, it will be copied with the same name and set as a primary for the output table

  • IDSOURCE : an identifier, if present will be copied as is. It is expected if you will use LW_ROADS as SOURCES_EMISSION in the Noise_Level_From_Source script input (INTEGER)

  • PERIOD : Any text that could be time period ex. D, E, N, DEN (Varchar), if present will be copied as is

  • LV : Hourly average light vehicle count (DOUBLE)

  • MV : Hourly average medium heavy vehicles, delivery vans > 3.5 tons, buses, touring cars, etc. with two axles and twin tyre mounting on rear axle count (DOUBLE)

  • HGV : Hourly average heavy duty vehicles, touring cars, buses, with three or more axles (DOUBLE)

  • WAV : Hourly average mopeds, tricycles or quads ≤ 50 cc count (DOUBLE)

  • WBV : Hourly average motorcycles, tricycles or quads > 50 cc count (DOUBLE)

  • LV_SPD : Hourly average light vehicle speed (DOUBLE)

  • MV_SPD : Hourly average medium heavy vehicles speed (DOUBLE)

  • HGV_SPD : Hourly average heavy duty vehicles speed (DOUBLE)

  • WAV_SPD : Hourly average mopeds, tricycles or quads ≤ 50 cc speed (DOUBLE)

  • WBV_SPD : Hourly average motorcycles, tricycles or quads > 50 cc speed (DOUBLE)

  • LV_D LV_E LV_N : Hourly average light vehicle count (6-18h)(18-22h)(22-6h) (DOUBLE)

  • MV_D MV_E MV_N : Hourly average medium heavy vehicles, delivery vans > 3.5 tons, buses, touring cars, etc. with two axles and twin tyre mounting on rear axle count (6-18h)(18-22h)(22-6h) (DOUBLE)

  • HGV_D HGV_E HGV_N : Hourly average heavy duty vehicles, touring cars, buses, with three or more axles (6-18h)(18-22h)(22-6h) (DOUBLE)

  • WAV_D WAV_E WAV_N : Hourly average mopeds, tricycles or quads ≤ 50 cc count (6-18h)(18-22h)(22-6h) (DOUBLE)

  • WBV_D WBV_E WBV_N : Hourly average motorcycles, tricycles or quads > 50 cc count (6-18h)(18-22h)(22-6h) (DOUBLE)

  • LV_SPD_D LV_SPD_E LV_SPD_N : Hourly average light vehicle speed (6-18h)(18-22h)(22-6h) (DOUBLE)

  • MV_SPD_D MV_SPD_E MV_SPD_N : Hourly average medium heavy vehicles speed (6-18h)(18-22h)(22-6h) (DOUBLE)

  • HGV_SPD_D HGV_SPD_E HGV_SPD_N : Hourly average heavy duty vehicles speed (6-18h)(18-22h)(22-6h) (DOUBLE)

  • WAV_SPD_D WAV_SPD_E WAV_SPD_N : Hourly average mopeds, tricycles or quads ≤ 50 cc speed (6-18h)(18-22h)(22-6h) (DOUBLE)

  • WBV_SPD_D WBV_SPD_E WBV_SPD_N : Hourly average motorcycles, tricycles or quads > 50 cc speed (6-18h)(18-22h)(22-6h) (DOUBLE)

  • PVMT : CNOSSOS road pavement identifier (ex: NL05)(default NL08) (VARCHAR)

  • TS_STUD : A limited period Ts (in months) over the year where a average proportion pm of light vehicles are equipped with studded tyres (0-12) (DOUBLE)

  • PM_STUD : Average proportion of vehicles equipped with studded tyres during TS_STUD period (0-1) (DOUBLE)

  • JUNC_DIST : Distance to junction in meters (DOUBLE)

  • JUNC_TYPE : Type of junction (k=0 none, k = 1 for a crossing with traffic lights ; k = 2 for a roundabout) (INTEGER)

  • SLOPE : Slope (in %) of the road section. If the field is not filled in, the LINESTRING z-values will be used to calculate the slope and the traffic direction (way field) will be force to 3 (bidirectional). (DOUBLE)

  • WAY : Define the way of the road section. 1 = one way road section and the traffic goes in the same way that the slope definition you have used, 2 = one way road section and the traffic goes in the inverse way that the slope definition you have used, 3 = bi-directional traffic flow, the flow is split into two components and correct half for uphill and half for downhill (INTEGER)

This table can be generated from the WPS Block ‘Import_OSM’. .

Type: String

Optional inputs

coefficientVersion — Coefficient version

🌧 Cnossos coefficient version (1 = 2015, 2 = 2020)

Type: Double

Default: 2

Output

result — Result output string

This type of result does not allow the blocks to be linked together.

Type: String