CONCLUSION
Improvement of traffic signal co-ordination and
timing is one of the most important strategies
for increasing travel speed and reducing delays
in urban areas. SIDRA 6.0 can help analyse and
improve traffic conditions in particular situations
such as junctions and roundabouts. It can also
help in the planning of the most appropriate
design for a particular situation, especially
improving the LOS of traffic flow. From the results
and outputs from the study, we can see a lot of
changes especially in LOS. With the addition of a
new lane and a new slip lane at critical junctions,
the overall LOS can be improved from grade F to C.
By using the recent SIDRA 6 package, it was
revealed that the total average delays, queue
distances, degree of saturation and CO 2 emission
decreased, and the system travel speed was
increased. Thus, a wide range of improvements
can be observed from the results before and after
optimisation of traffic flows at the intersections.
RECOMMENDATIONS
Based on the conclusions derived from the studies
before and after optimisation of the T-Intersection
on Bukit Chedang, Rasah Seremban, several
recommendations for future research can be
proposed:
a. The use of advanced control cameras like
CCTV cameras to alleviate congestion and
remove obstacles in the movement of
traffic within the study area,
b. Using a sensor during congestion times at
signalised junctions and rearranging green
time and automatic phasing time,
c. Use of traffic control systems (SCATS) which
can minimise the possibility of traffic jams
by controlling the formation of queues.
d. It could be useful to study the results
obtained from current software such as
PARAMICS, VISSIM and Highway Capacity
Software (HCS) for the same case study
and compare them with those obtained
from SIDRA 6.0.
e. The last recommendation is to encourage
the change from private transportation to
public transportation to get rid of congestion
and blocking traffic on the road.
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