Safety Aspects of using Blackbox and CCTV

on Double Deck Buses

The Data Logger (the blackbox)

Objective

The Data Logger system provide exception reports and query tool on data, which can be used to :

- provide evidence for incident investigation;

- identify bus captain with erratic driving behaviour;

- diagnose transcient vehicle faults

Objective

It is a pro-active prevention system that we can:

- put more attention to bus captians who need to improve his/her driving style

reduce accident potential

save fuel

- take preventive vehicle maintenance

reduce vehicle breakdown

In Vehicle Unit

Signal Recorded

ON / OFFBell Push

ON / OFFIgnition

ON / OFFReverse Gear

ON / OFFDoor Open

ON / OFFFoot Brake

ON / OFFNeutral Gear

ON / OFFEngine Temperature

XXXX (RPM)Engine Speed (RPM)

+/- X.XX (G) Y-Force from accelerometer

+/- X.XX (G) X-Force from accelerometer

XXX (km/h)Vehicle Speed

YYYYMMDD:HHMMSSDate & Time

FormatItem

Event Generated

The report lists all Accident events with Driver ID, Driver Name, Fleet No, Route No, strongest deceleration and time occurred.

When decelerationis stronger than Accident Triggering Point (configurable, default

Event Generated

The report lists all Over Acceleration events with Driver ID, Driver Name, Fleet No, Route No, First Event Time, strongest acceleration, and time occurred.

When accelerationis stronger than Over Acceleration Triggering Point (configurable, default >= +0.2G)

Over-Acceleration Event

Data Logger Event Reports

Event TriggerEvent Type

Event Generated

The report lists all Over Deceleration events with Driver ID, Driver Name, Fleet No, Route No, First Event Time, strongest deceleration, and time occurred.

When deceleration is stronger than Over Deceleration Triggering Point (configurable, default

Event Generated

The report lists all Over Speed events with Driver ID, Driver Name, Fleet No, Route No, Start Time, Duration and Max Speed.

When the vehicle speed >= Over-speed Triggering Point (configurable, default >= 75 km/hr)

Over-Speed Event

Data Logger Event Reports

Event Trigger Event Type

Event Generated

The report lists all Neutral Gear events with Driver ID, Driver Name, Fleet No, Route No, Start Time, Duration and Max Speed.

When Vehicle speed >= Neutral Gear Triggering point (configurable, default = 10 km/h), and Neutral Gear signal is ON for more than 1 second

Neutral Gear Event

Data Logger Event Reports

Event Trigger Event Type

Event Generated

The report lists all overheat or general fault (specific bus type) events with Driver ID, Driver Name, Fleet No, Route No, Start Time and duration.

When the engine temperature warning light is ON for more than 1 second

Overheating Event

Data Logger Event Reports

Event Trigger Event Type

Event Generated

The report lists all ignition events with Fleet No, Start Time, and duration.

When the ignition signal changes state

Ignition On/Off Event

Data Logger Event Reports

Event Trigger Event Type

Data Storage and Collection

Bus Depot (regular: WiFi)WiFi network installed at bus refuelling area in depotWithin WiFi coverage, In Vehicle Unit (IVU) on the bus communicates with the Bus Depot Computer (BDC). Data Logger data uploads to BDC; parameters and software update patch downloads to IVU.The BDC in each depot transmits data to the main server database.

WiFi Antenna

Data Storage and Collection

Bus Depot (fallback: manual)The system supports manual upload

and download.Data Retrieval SD Card or USB flash disc is taken to the vehicle and plugged into the slot in the front of the IVU. The card/ flash disc contains specific commands that the IVU reads and follows to transfer the log data to the card/ flash disc from the IVUs internal storage.

Data Storage and Collection

The card/ flash disc can be unplugged and inserted into the main server via a PC. After upload, data retains in the IVU for 14 days before it is overwritten. If the IVU cannot be powered after the accident, the internal USB flash disc under the front panel can be taken out for retrieval.From the main server database, exceptional

and query reports can be made.

Exceptions Report

Total EventsDriver NameDriver ID

43Total

1XX344XX

2XX144XX

1NANA

Sample : AccidentAccident, acceptance level >= 1 (default), Parameter: Deceleration

Exceptions Report

565Total

5XX344XX

21XX340XX

13XX149XX

3XX144XX

14NANA

Total EventsDriver NameDriver ID

Sample : Over-accelerationOver-acceleration, acceptance level >= 2 (default), Parameter: Acceleration >= 0.2G

Exceptions Report

5XX128XX

2XX123XX

14XX122XX

2XX114XX

1XX106XX

1XX035XX

1XX035XX

20NANA

Total EventsDriver NameDriver ID

Sample : Over-decelerationOver-deceleration, acceptance level >= 1 (default), Parameter: Deceleration

Exceptions Report

17XX123XX

12XX122XX

2XX114XX

3XX106XX

6XX035XX

13XX035XX

8XX034XX

112NANA

Total EventsDriver NameDriver ID

Sample : Over-speedOver-speed, acceptance level >= 1 (default), Parameter: Speed >= 75km/h

Exceptions Report

1953Total

10XX062XX

6XX034XX

179NANA

Total EventsDriver NameDriver ID

Sample : Neutral GearNeutral Gear, acceptance level >= 2 (default), Parameter: Speed >= 10km/h

Exceptions Report

4570

7567

5558

Total EventsBus ID

Sample : Bus OverheatBus Overheat, acceptance level >= 4

Detailed Report

BC ID BCName

BusID

RouteNo

Speed(km/h)

Acc(G)

RPM X-Force(G)

Y-Force(G)

Foot-brake

NeutralGear

EngineTemp

RevGear

DoorOpen

HandBrake

BellPush

344XX XX 636 11 -0.54 25 -0.12 -0.06 ON OFF OFF OFF OFF OFF OFF

344XX XX 636 4 -0.22 15 -0.08 0 ON OFF OFF OFF OFF ON OFF

344XX XX 636 0 -0.11 145 0.06 0 OFF OFF OFF OFF OFF ON OFF

344XX XX 636 0 0 183 0.09 0 OFF OFF OFF OFF OFF ON OFF

344XX XX 636 0 0 507 0.06 -0.01 OFF OFF OFF OFF OFF ON OFF

344XX XX 636 0 0 525 0.07 -0.01 OFF OFF OFF OFF OFF ON OFF

344XX XX 636 0 0 322 0.07 -0.03 OFF OFF OFF OFF OFF ON OFF

344XX XX 636 0 0 302 0.07 0.03 OFF OFF OFF OFF OFF ON OFF

344XX XX 636 0 0 310 0.07 0 OFF OFF OFF OFF OFF ON OFF

344XX XX 636 0 0 346 0.07 0 OFF OFF OFF OFF OFF ON OFF

Chart

Chart

Digital Recording CCTV

Objective

Enhance the onboard CCTV system with recording function system to:

- monitor farebox

- provide evidence for traffic incident investigation;

- provide evidence for lost of baggage investigation.

Equipments installed

Channel - Rear

Channel - Upper

Channel Exit/ Rack

Channel Exit/ Rack

Channel Cab

Channels Recorded

Medium64 Driver Cab

Medium33 Luggage Rack

Not RecordingNot Recording2 Upper Deck Saloon

Not RecordingNot recording1 Rear

ResolutionImage per Second

Channel

Data Privacy

Guidelines on Data Privacy followed.

Only access by person authorised by manager for:1. Investigation of incident2. Quality audit

Recorded image, if not downloaded, will be overwritten in about 1 week. Downloaded image will be destroyed if no further action shall be taken.

Conclusion

Conclusion

Data Logger- active collection and analysis of data

CCTV Recording- more information from visual image

Shortlist Investigation Training Prevention

Questions & Answers