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Class - TrafficHeadway
D2LogicalModel.General.ReusableClasses.BasicData.TrafficData.TrafficHeadway
Averaged measurements or calculations of traffic headway, i.e. the distance or time interval between vehicles. This measure is measured from the head of one vehicle to the head of the following vehicle.
Inheritance
This is a specialization of the TrafficData class and it inherits all attributes and associations of that class.
List of attributes
| Name | Data Type | Order | Definition | ||
|---|---|---|---|---|---|
| measurementOrCalculatedTimePrecision | TimePrecisionEnum | 2 | The precision to which the time of measurement or calculation is given. | Inherited from BasicData | |
| measurementOrCalculationPeriod | Seconds | 0 | The time elapsed between the beginning and the end of the sampling or measurement period. This item may differ from the unit attribute; e.g. an hourly flow can be estimated from a 5-minute measurement period. | Inherited from BasicData | |
| measurementOrCalculationTime | DateTime | 1 | Point in time at which this specific value or set of values has been measured or calculated. It may also be a future time at which a data value is predicted. | Inherited from BasicData |
Associations
| Multiplicity | From | Role | Role description | Association | Multiplicity | To | Role | Role description | |
|---|---|---|---|---|---|---|---|---|---|
| 0..1 | FloatingPointMetreDistanceValue | averageDistanceHeadway | related to | 1 | TrafficHeadway | ||||
| 0..1 | DurationValue | averageTimeHeadway | related to | 1 | TrafficHeadway | ||||
| 0..1 | VehicleCharacteristics | forVehiclesWithCharacteristicsOf | related to | 1 | TrafficData | Inherited from TrafficData | |||
| 0..1 | GroupOfLocations | pertinentLocation | related to | 1 | BasicData | Inherited from BasicData | |||
| 0..1 | BasicData | related to | 1 | MeasuredValue | Inherited from BasicData | ||||
| 0..1 | BasicData | related to | 1 | ElaboratedData | Inherited from BasicData |