BLACKSPOT CASE STUDIES –

CENTRAL JAVA

Investigations of 8 blackspots near Semarang – April 2012

BLACKSPOT 1 – DEMAK 12.5KM

4 5 6 7 8 9 10 11 12 13 14

12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.6 12.6 12.6 12.6

14/05/2011 25/09/2011 03/08/2011 31/10/2011 11/05/2011 28/11/2011 18/01/2012 18/03/2011 10/09/2011 18/08/2011 30/09/2011

21:30:00 05:00:00 06:00:00 11:30:00 17:15:00 08:00:00 19:00:00 21:30:00 05:00:00 16:30:00 20:00:00

0 0 0 0 1 1 0 0 1 1 0

0 0 0 0 0 0 0 0 0 0 0

2 1 1 2 2 1 1 3 0 0 2

3 2 2 1 2 2 3 3 2 2 3

fine fine fine fine fine fine fine fine fine fine fine

good good good good good good good good good good good

m/c m/c m/c m/c mini bus m/c m/c m/c mini bus heavy truck m/c

m/c m/c m/c m/c m/c m/c m/c

m/c

41 63 3 93 41 4 41 4 3 41 91

1 1 1 1 1 1 1 1 1 1 1

7 7 7 7 7 7 1 1 7 7 7

1 1 1 1 1 1 1 1 1 1 1

Demak 12.5km

Demak 12.5km

Demak 12.5km

Demak 12.5km

Demak 12.5km

Demak 12.5km

Demak 12.5km

Demak 12.5km

Demak 12.5km

Demak 12.5km

Demak 12.5km

Demak 12.5km

Demak 12.5km

Demak 12.5km

RECOMMENDATIONS FOR U TURN:

Speed restriction signs at 1km spacing's along

Pantura through Demak

Relocate U turn west by 15m (approx) to make a T

junction with side road

Make the U turn more conspicuous

Regulatory signs both sides

Warning signs 200m and 100m in advance

Pavement arrows – 3 pairs – both approaches

Edge line both sides of each carriageway

Paint kerbing for last 100m each approach

RECOMMENDATIONS FOR BRIDGE:

Seal the shoulder on the last 100m approaching the

bridge from the west.

Make the bridge more conspicuous

Width markers both sides

Edge line both sides of each carriageway