309. Ego approach congestion
Scenario location: $FTX_PACKAGES/base_scenarios/scenarios/traffic/ego_approach_congestion/
In the Ego approach congestion scenario, the Ego travels and approaches the traffic vehicles.
309.1 Actors
The actors associated with this scenario are as follows:
| Name | Description | Type | Depiction |
|---|---|---|---|
ego |
Vehicle under test | vehicle |
 |
vehicle_1,vehicle_2,vehicle_3 |
Vehicles aahead of ego which creates a congestion | vehicle |
 |
Figure 1 shows the Ego approaching the congestion scenario.
309.2 Prerequisites
Environmental requirements: A road with at least three lanes.
309.3 Scenario essence
309.3.1 phase_essence
Ego: The Ego approaches the congestion and maintains a relative speed to the traffic.
vehicle_1, vehicle_2 and vehicle_3: These vehicles drive ahead of the Ego and slow down.
309.4 Scenario Main phases
The ego_approach_congestion_main scenario is structured into three distinct phases.
309.4.1 phase_ego_warm_up
The phase_ego_warm_up invokes the ego_approach_congestion_ego_warm_up scenario.
309.4.2 phase_essence
The phase_essence invokes the phase_essence.
309.4.3 phase_post
The phase_post invokes the ego_approach_congestion_post scenario.
309.5 Parameters
The paths to the CSV file and the main CSV file are as follows:
$FTX_PACKAGES/base_scenarios/test_suites/test_suite_definitions/traffic/ego_approach_congestion.csv
$FTX_PACKAGES/base_scenarios/test_suites/test_suite_definitions/traffic/ego_approach_congestion_main.csv
| Parameter | Description | Range |
|---|---|---|
gen_traffic_speed |
Input traffic speed | [0..150]kph |
gen_ego_speed_at_start |
Input speed of the Ego at the start of the scenario | [0..150]kph |
309.6 Events
No events are defined in this scenario.
309.7 Metrics
Metrics collected during test execution are given below.
309.7.1 Coverage
The coverage metrics are given below.
309.7.1.1 Coverage items
The multi-dimensional situations captured during the test execution are as follows:
| Item | Description | Range | Unit/Type |
|---|---|---|---|
vehicle_1_speed_at_start |
vehicle_1 speed at start | [0..150), every: 10.0 | kph |
vehicle_2_speed_at_start |
vehicle_2 speed at start | [0..150), every: 10.0 | kph |
vehicle_3_speed_at_start |
vehicle_3 speed at start | [0..150), every: 10.0 | kph |
gen_traffic_speed |
Input traffic speed | [0..150), every: 10.0 | kph |
traffic_speed |
Actual traffic speed | [0..150), every: 10.0 | kph |
[Click] The coverage items inherited from the sut.traffic_family_base scenario are as follows:
| Item | Description | Range | Unit/Type |
|---|---|---|---|
| -- | -- | -- | -- |
[Click] The coverage items inherited from the sut.generic_base scenario are as follows:
| Item | Description | Range | Unit/Type |
|---|---|---|---|
gen_ego_speed_at_start |
Input speed of the Ego at the start of the scenario | [0..150), every: 10.0 | kph |
ego_speed_at_start |
Actual speed of the Ego at the start of the scenario | [0..150), every: 10.0 | kph |
309.7.1.2 Cross coverage items
The test execution data for the combination of multiple coverage items is as follows:
| Item | Description | Referred coverage items |
|---|---|---|
| -- | -- | -- |
[Click] The cross coverage items inherited from the sut.traffic_family_base scenario are as follows:
| Item | Description | Referred coverage items |
|---|---|---|
| -- | -- | -- |
[Click] The cross coverage items inherited from the sut.generic_base scenario are as follows:
| Item | Description | Referred coverage items |
|---|---|---|
| -- | -- | -- |
309.7.2 KPI
The key performance indicators are given below.
309.7.2.1 Record items
The performance metrics and the data items captured during the test execution are as follows:
| Item | Description | Range | Unit/Type |
|---|---|---|---|
| -- | -- | -- | -- |
[Click] The KPIs inherited from the sut.traffic_family_base scenario are as follows:
| Item | Description | Range | Unit/Type |
|---|---|---|---|
| -- | -- | -- | -- |
[Click] The KPIs inherited from the sut.generic_base scenario are as follows:
| Item | Description | Range | Unit/Type |
|---|---|---|---|
| -- | -- | -- | -- |