This paper evaluated the effect of the COVID-19 preventive orders on arterial roadway travel
time reliability (TTR). A comparative analysis was conducted to examine average travel time …

Bus bunching occurring at stops has an unstable impact on bus travel time. In order to
evaluate urban bus travel time effectively, the travel time reliability (TTR) addressing bus …

The concept of travel time reliability was developed to quantify the variability in travel times.
As travel time reliability measures are increasingly used in system planning and …

This study investigates the lifetime costs associated with concrete barriers and steel
guardrails. We introduce a cost analysis methodology that incorporates critical factors such …

Lane closure on a two-lane work zone can negatively affect operational performance.
Although a microsimulation model is often used to quantify and predict these negative …

The Moving Ahead for Progress in the 21st Century Act (MAP-21) defined requirements for
system reliability performance measures. Under MAP-21, state departments of transportation …

Travel time threshold is a key parameter for calculating the travel time reliability (TTR) of a
road network from probabilistic measures. However, the lack of an accepted criterion has …

The need for reliable performance measures of urban arterial corridors is increasing
because of the rise in traffic congestion and the high value of users' travel time …

Lane closures are used to facilitate activities related to road construction and maintenance
or operations. However, there are economic costs associated with lane closures and these …

In the current version (Version 6) of the Highway Capacity Manual (HCM), equal-capacity
passenger car equivalencies (EC-PCEs) are used to account for the effect of trucks for …