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vein (version 1.1.3)

Vehicular Emissions Inventories

Description

Elaboration of vehicular emissions inventories, consisting in four stages, pre-processing activity data, preparing emissions factors, estimating the emissions and post-processing of emissions in maps and databases. More details in Ibarra-Espinosa et al (2018) . Before using VEIN you need to know the vehicular composition of your study area, in other words, the combination of of type of vehicles, size and fuel of the fleet. Then, it is recommended to start with the project to download a template to create a structure of directories and scripts.

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Version

Install

install.packages('vein')

Monthly Downloads

529

Version

1.1.3

License

MIT + file LICENSE

Issues

Pull Requests

Stars

Forks

Repository

https://github.com/atmoschem/vein

Maintainer

Sergio Espinosa

Last Published

May 1st, 2024

Functions in vein (1.1.3)

Average daily traffic (ADT) from hourly traffic data.

Returns amount of vehicles at each age

Fraction of mileage driven with a cold engine or catalizer below normal temperature

Construction function for Celsius temperature

function to add a scale to a image plot

Average Weight for hourly traffic data.

Returns amount of vehicles at each age

Applies a survival rate to numeric new vehicles

Returns amount of vehicles at each age

Chinese emission factors by emissions standard

Number of days of the month

Correction of Chinese emission factors by sulfur

Correction of Chinese emission factors by deterioration

Correction of Chinese factors by altitude

Function to plot columns of data.frames

Emissions factors for Environment Company of Sao Paulo, Brazil (CETESB)

Correction of Chinese emission factors by humidity

Description data.frame for MOVES

Emissions factors from Chinese emissions guidelines

Correction of Chinese emission factors by speed

Experimental: Returns a function of Emission Factor by age of use

Correction of Chinese emission factors by temperature

Emission Factors from EMFAC emission factors

Emission factors deoending on accumulated mileage

Evaporative emission factor

Emissions factors for Heavy Duty Vehicles based on average speed

Scaling constant with speed emission factors of Heavy Duty Vehicles

Emissions factors from European European Environment Agency

Correction of Chinese factors by humidity when temperature > 24

Estimation of emissions

Local Emissions factors

Emissions factors from tyre, break and road surface wear

ef_ldv_cold_list

List of cold start emission factors of Light Duty Vehicles

Cold-Start Emissions factors for Light Duty Vehicles

Scaling constant with speed emission factors of Light Duty Vehicles

(in development, needs checks) Aggregate emissions by lumped groups in chemical mechanism

Emissions factors for Light Duty Vehicles and Motorcycles

Emissions factors of N2O and NH3

Emission factor that incorporates the effect of high emitters

Determine deterioration factors for urban conditions

Estimation of cold start emissions hourly for the of the week

Allocate emissions into a grid returning point emissions or flux

Estimation of evaporative emissions 2

Aggregate emissions by lumped groups in chemical mechanism

Estimation of evaporative emissions

Estimation of cold start emissions with top-down approach

Emission calculation based on EMFAC emission factors

Estimation with Chinese factors

Allocate emissions into spatial objects (street emis to grid)

emis_to_streets

Emis to streets distribute top-down emissions into streets

Emission estimation from tyre, brake and road surface wear

Estimation of resuspension emissions from paved roads

Estimation of hot exhaust emissions with a top-down approach

Emission factors from Environmental Agency of Sao Paulo CETESB

Estimation with long format

Re-order the emission to match specific hours and days

Merge several emissions files returning data-frames or 'sf' of lines

List of functions of mileage in km fro Brazilian fleet

Helper function to copy and zip projects

Inventory function.

Download vein project

Correction due Fuel effects

Calculate speeds of traffic network

Get ef reference data

Allocate emissions gridded emissions into streets (grid to emis street)

Profile of Vehicle start patterns

MOVES estimation of using rates per distance

MOVES estimation of using rates per start by model year

moves_rpsy_meta

MOVES estimation of using rates per start by model year

MOVES emission factors

Return speed bins according to US/EPA MOVES model

MOVES estimation of using rates per distance by model year

Road network of the west part of Sao Paulo city

Returns amount of vehicles at each age

Speciation of emissions

creates a .tex a table from a data.frame

Data.frame with pollutants names and molar mass used in VEIN

Split street emissions based on a grid

Creates rectangular grid for emission allocation

Profile of traffic data 24 hours 7 n days of the week

Estimation of VKM

Transform data.frame from wide to long format

MOVES estimation of using rates per distance by model year

Transform data.frame from long to wide format

Profile of traffic data 24 hours 7 n days of the week

vein-deprecated

Deprecated functions in package vein.

moves_rpdy_meta

MOVES estimation of using rates per distance by model year

Expansion of hourly traffic data

vein: Vehicular Emissions Inventories

Notes with sysinfo

Expanded Vehicles data.frame by hour

Construction function for class "Vehicles"

Construction function for class "EmissionsArray"

Construction function for class "Emissions"

EmissionFactors

Construction function for class "EmissionFactors"

Construction function to add unit miles

EmissionFactorsList

Construction function for class "EmissionFactorsList"

Construction function to add unit km

Add polygon id to lines road network

GriddedEmissionsArray

Construction function for class "GriddedEmissionsArray"

Construction function for class "Speed"

Check the max number of threads