Class: default

Type aliases

Types

Ƭ Types: Object

Type declaration

Name	Type
AirportI	AirportI
AirportsI	AirportsI
DataE	DataE
FlightI	FlightI
HaulE	HaulE
SeatE	SeatE

Functions

getAirports

▸ Const getAirports(): AirportsI

Return the available airports

Returns

AirportsI

constant data loaded

---

getDistance

▸ Const getDistance(fromLat, fromLon, toLat, toLon): number

Compute distance in km from longitude and lattitude using the haversine formula.

description the law of haversine in brief: Given a unit sphere, a "triangle" on the surface of the sphere is defined by the great circles connecting three points u, v, and w on the sphere. If the lengths of these three sides are a (from u to v), b (from u to w), and c (from v to w), and the angle of the corner opposite c is C, then the law of haversines states:

hav(c) = hav(a - b) + sin(a) * sin(b) * hav(C)

Since this is a unit sphere, the lengths a, b, and c are simply equal to the angles (in radians) subtended by those sides from the center of the sphere (for a non-unit sphere, each of these arc lengths is equal to its central angle multiplied by the radius R of the sphere).

Parameters

Name	Type	Description
fromLat	number	Lattitude of the point of departure
fromLon	number	Longitude of the point of departure
toLat	number	Lattitude of the point of arrival
toLon	number	Longitude of the point of arrival

Returns

number

the distance in km

Table of contents

Constructors

• constructor

Properties

• avgEmission
• avgEmissionByPassenger
• data
• dataSet

Methods

• getData
• getDataset
• getEmissionAvg
• getEmissionAvgByPassenger
• getEmissionEstimated
• getHaulFactor
• build

Constructors

constructor

• new default(dataSet, data)

warning Should not be used : please use the static build method using dataset enum type DataE

Parameters

Name	Type
dataSet	ADEME_2022
data	DataI

Properties

avgEmission

• Private avgEmission: undefined | number

---

avgEmissionByPassenger

• Private avgEmissionByPassenger: undefined | number

---

data

• Private data: DataI

---

dataSet

• Private dataSet: ADEME_2022

Methods

getData

▸ getData(): DataI

Return the current data constants loaded

Returns

DataI

constant data loaded

---

getDataset

▸ getDataset(): ADEME_2022

Return the inner data set name

Returns

ADEME_2022

constant data loaded

---

getEmissionAvg

▸ getEmissionAvg(): number

Return the average co2 estimation in peq.kgCO2e/year (per person).

description This constant is the ratio totalEmission/#people

Returns

number

The average co2 emission in peq.kgCO2e/year (per person).

---

getEmissionAvgByPassenger

▸ getEmissionAvgByPassenger(): number

Return the average co2 estimation in peq.kgCO2e/year (per passenger).

description This constant is the ratio totalEmission/#passenger

Returns

number

The average co2 emission in peq.kgCO2e/year (per passenger).

---

getEmissionEstimated

▸ getEmissionEstimated(travel, nbFlights): number

Compute the co2 emissions from air travels in kgCO2e/year

description Firstly the distances are calculated between the airports selected, then we use the factor emission expressed in kgCO2e/peq.km (peq = person equivalent) to get our first estimation per equivalent person:

• Emission = Distance * Factor
• [kgCO2e/year] = [km/year] * [kgCO2e/km]

Finally, we add a factor depending on the class of the seat taken (economy class, business class, first class).

Parameters

Name	Type	Description
travel	FlightI	-
nbFlights	number	the number of flight made a year.

Returns

number

the estimated flight emissions for the passengers in kgCO2e -1 in case of error (e.g. missing IATA airport)

---

getHaulFactor

▸ getHaulFactor(distance): number

Retrieve the emission factor from the flight distance

Parameters

Name	Type	Description
distance	number	distance of the flight in km

Returns

number

emission factor in kgCO2e/peq.km

---

build

▸ Static build(dataset)

Create a calculator instance from dataset

Parameters

Name	Type
dataset	ADEME_2022

Returns

new House calculator - Throw error if dataset not loaded.