Both models are based on data generated from the corridor micro-simulation (CORSIM) software. This study proposes two alternative direct models for estimating PTSF: (1) a general linear regression model using typically-used input variables and (2) a non-linear form using only the follower density. However, PTSF is currently estimated indirectly using various measured field data. The percent time-spent following (PTSF) is a key measure for estimating the level-of-service for two-lane highways.
The study concludes by proposing two comparative summary tables of all spatial bus priority schemes in terms of "min. Academic papers (theoretical, analytical, and simulation-based), technical reports, and design manual/guidelines in the context of both developed and developing countries have been searched as part of the literature review process. In order to address this constraint, the present study proposes a general typology of existing BP methods and evaluates the challenges and requirements regarding their implementation by conducting a comprehensive literature review of existing studies related to PTP. Of course, evaluating such studies is a time-consuming process.
buses), need to investigate existing BP methods in detail and assess relevant research before setting about designing or implementing new policies.
PT authorities, urban planners/designers, and researchers dealing with PT issues (i.e. Today, bus priority (BP) methods, as one of the most widely used Public Transport Priority (PTP) strategies, are commonly recognized as effective in lowering traffic congestion and reducing bus travel times. Thus, theories on the best means of allocating existing road spaces for cars and buses in city-centers and suburban corridors in order to improve operational transport efficiency has become a frontier research topic. Urban transit systems consist of multiple modes of transport of which cars and buses make up the largest portion, particularly in developing countries.
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