01592754

Component

Urban transportation networks are plagued with recurring and non-recurring congestion problems. Link- and corridor-level congestion problems of transportation systems are primarily measured using travel time data. The travel time could depend on various factors such as the motorists’ characteristics, vehicular characteristics, road characteristics and non-recurring events. It also varies with the time-of-the-day (ToD) and the day-of-the-week (DoW). Practitioners and researchers have proposed and used various travel time data based measures to assess transportation system performance. These measures range from travel time and travel time percentiles to travel time reliability indices and variance based measures. The measures may be correlated to each other and yield different outcomes when applied for different purposes (quantify level of congestion, before and after evaluations, or compare one link with another link for ranking and prioritization). This paper aims to evaluate the inter-relationships between selected travel time, travel time percentile, travel time reliability index and variance based performance measures. It also aims to identify and recommend suitable performance measures for different types of transportation studies or purposes.

This paper was sponsored by TRB committee ABJ30 Standing Committee on Urban Transportation Data and Information Systems. Alternate title: Travel-Time-Based Performance Measures: Examining Interrelationships and Recommendations for Analysis

01584066

16-2802

English

18p

2016

Transportation Research Board 95th Annual Meeting

Digital/other

References; Tables

Performance measurement; Periods of the day; Reliability; Traffic congestion; Travel time; Weeks

Charlotte (North Carolina)

Highways; Operations and Traffic Management

Transportation Research Board Annual Meeting 2016 Paper #16-2802

TRIS, TRB, ATRI

Jan 12 2016 5:14PM