How events unfolded
North
To Croydon
Tunnel
Sandilands
tram stop
1
Site of
crash
2
3
Addiscombe
Road
4
Sandilands Road
1
Data from the black box recorder shows the tram was travelling at 49mph (78km/h) in the tunnel
2
Tram slows only slightly and too late as it approaches curve, which has a 12mph speed limit
3
Travelling at approximately 46mph the tram tips as it enters the curve
4
The two-car tram, weighing about 37 tonnes, comes to rest on its side
The approach to
Sandilands Junction
Distances measured from
the 20km/h speed restriction sign
180 metres
The point at which a tram must start braking to slow from 80 to 20km/h before the bend
Tunnel
(80km/h
limit)
90 metres
Earliest point at which the 20km/h sign becomes readable in the hours of darkness
Tunnel
exit
Direction
of travel
+24 metres
The tram derailed and tips on to its right side
20km/h sign
+49 metres
Tram comes to rest with its cab 49 metres past the 20km/h sign
To
Sandilands
Guardian graphic | Source: Rail Accident Investigation:
Interim Report 2; Google
How events unfolded
To Croydon
North
Tunnel
Sandilands tram stop
1
Site of
crash
2
3
4
Addiscombe
Road
Sandilands Road
1
Data from the black box recorder shows the tram was travelling at 49mph (78km/h) in the tunnel
2
Tram slows only slightly and too late as it approaches curve, which has a 12mph speed limit
3
Travelling at approximately 46mph the tram tips as it enters the curve
4
The two-car tram, weighing about 37 tonnes, comes to rest on its side
The approach to Sandilands Junction
Distances measured from
the 20km/h speed restriction sign
To
Sandilands
Tunnel
(80km/h limit)
Tunnel
exit
Direction
of travel
20km/h sign
180 metres
The point at which a tram must start braking to slow from 80 to 20km/h before the bend
90 metres
Earliest point at which the 20km/h sign becomes readable in the hours of darkness
+24 metres
The tram derailed and tips on to its right side
+49 metres
Tram comes to rest with its cab 49 metres past the 20km/h sign
Guardian graphic | Source: Rail Accident Investigation: Interim Report 2; Google