  Population and economic growth of urban areas have led to intensive use of
private vehicles, thereby increasing traffic volume and congestion on roads.
The traffic management in the city is a challenge for concerned authorities,
and the signalized intersections are the primary interest of traffic
management. Interpreting traffic patterns and current traffic signal operations
can provide thorough insights to take appropriate actions. In this view, a
comprehensive study is conducted at selected intersections from Tumakuru
(tier-2 city), Karnataka, India. Data estimates traffic parameters such as
saturation flow, composition, volume, and volume-to-capacity ratio. The
statistical results currently confirm the stable traffic condition but do not
ensure sustainability. The volume-to-capacity ratio is greater than 0.73 along
three major arterial roads of study intersections, indicating congestion in the
future as the traffic volume is increasing gradually, as per the Directorate of
Urban Land Use and Transportation, Government of Karnataka. The statistical
results obtained through the current study uphold the report. The empirical
results showed 40% of green time wastage at one of the study intersections,
which results in additional waiting delays, thereby increasing fuel consumption
and emissions. The overall service level of the study intersections is of class
C based on computed delay and volume-to-capacity ratio. The study suggests
possible treatments for improving the service level at the intersection
operations and sustaining the city's stable traffic condition. The study
supports city traffic management authorities in identifying suitable treatment
and implementing accordingly.
