Abstract Ethiopia's government proposes paving existing roads or building modern intersections in cities to reduce maintenance costs. An unimproved signalized intersection at 6° 51′ 47.9″ N and 37° 45′ 50.1″ E is selected for this research. Cost-benefit analysis used evaluate the proposed innovative approach designing implementing an compare whether new road projects will have adequate return. ...

Introduction Perceived waiting time (PWT) at signalized intersections differs from the real value of waiting time (WT), and varies with signal design. The onerousness of delay depends on the conditions under which it is experienced. Using weighted travel time may contribute to optimal signal control if its use can improve upon assuming that all time is weighted equally by users. This research e...

Signal timing and lane allocation are most important settings at signalized intersections to control the operation. Efficiently operated traffic signals and reasonably designed lane markings can reduce congestion and bring about significant payoffs in time and energy benefits. The design of signal timing plan and lane allocation pattern should be complementary to each other; however, existing r...

R IG H T -T U R N -O N -R E D H IS T O R Y The controversial Right-Turn-On-Red (R T O R ) at signalized intersections began in 1937 when some authorities in California became convinced that motorists making right turns were wasting too much time waiting for the green traffic signal. These authorities first experi­ mented with permitting motorists to make a right turn while facing a red signal o...

One of the fundamental requirements to facilitate implementation of any Advanced Transportation Management and Information System (ATMIS) is the development of a real-time traffic surveillance system to produce reliable and accurate traffic performance measures. This study presents a new framework for anonymous vehicle tracking that is capable of tracing individual vehicles by utilizing vehicle...

The evaluation of capacity at signalized intersections is an important component in the proper planning, design, operation, and management of urban road street network. A procedure for determining the saturation flow rates at signalized intersections is presented in this paper; the procedure differs substantially from the procedure as discussed in the Highway Capacity Manual (HCM). ANalysis of ...