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Work Zone Safety Information Clearinghouse

Library of Resources to Improve Roadway Work Zone Safety for All Roadway Users

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Work Zone Capacity

Impact of Lane Closures on Roadway Capacity: Modeling Diversion Propensity at Work Zones (Part C)

Chapter 10 of the FDOT Plans Preparation Manual titled "Work Zone Traffic Control" contains a lane closure analysis procedure, in which a "Remaining Traffic Factor" (RTF) is used to account for … [Read more...] about Impact of Lane Closures on Roadway Capacity: Modeling Diversion Propensity at Work Zones (Part C)

Impact of Lane Closures on Roadway Capacity: Part B: Arterial Work Zone Capacity

The current Florida Department of Transportation (FDOT) arterial work zone capacity estimation procedure does not account for various operating and work zone characteristics of the facility (i.e. … [Read more...] about Impact of Lane Closures on Roadway Capacity: Part B: Arterial Work Zone Capacity

Impact of Lane Closures on Roadway Capacity: Development of a Two-Lane Work Zone Lane Closure Analysis Procedure (Part A)

While there have been a number of studies conducted on roadway work zone operations, very few of them have focused on two-lane roadway work zones, where one lane is closed and traffic flow must … [Read more...] about Impact of Lane Closures on Roadway Capacity: Development of a Two-Lane Work Zone Lane Closure Analysis Procedure (Part A)

Freeway Work Zone Committee Final Report on Freeway Work Zone Traffic Control Method Selection Process

Final report of a Wisconsin DOT committee which reviewed literature on work zone lane capacity and recommended a process for selecting traffic control staging method. The information is focused on … [Read more...] about Freeway Work Zone Committee Final Report on Freeway Work Zone Traffic Control Method Selection Process

Traffic Capacity, Speed, and Queue-Discharge Rate of Indiana’s Four-Lane Freeway Work Zones

In addition to traffic capacity, vehicle speeds and queue-discharge rates at work zones are essential in assessment of work zone traffic delays and user costs. The traffic flow characteristics of … [Read more...] about Traffic Capacity, Speed, and Queue-Discharge Rate of Indiana’s Four-Lane Freeway Work Zones

Flow Characteristics at Freeway Work Zones and Increased Deterrent Zones

Traffic-flow characteristics were studied at two work zones on suburban freeways and at a third freeway site where a police patrol car, easily noticed by drivers, was parked on the right shoulder. The … [Read more...] about Flow Characteristics at Freeway Work Zones and Increased Deterrent Zones

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