Hot In-Place Recycling

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As with all road construction projects, keeping residents and road users notified and informed of upcoming activities is helpful in minimizing confusion, motorist delays and complaints. Extra care should be taken to adequately inform the public and other stakeholders regarding the work.

Notification practices vary from agency to agency and from job to job, but some common forms of notification include one or more of the following:

  • Letters and/or emails to all affected parties
  • Hand-delivered notices to properties abutting the project
  • Temporary "No Parking" signs at appropriate intervals on the project
  • Electronic message boards set up in advance of the work
  • Reverse 911 automated telephone messages to property owners
  • Posting project information on the agency's website
  • Social media messaging of the upcoming work
  • Conventional media (TV, radio and newspaper) notices

Notification message content varies, but usually includes the following information to address six basic questions:

  • What? (a brief description of the treatment being used)
  • Where? (the street names and limits of the work for each)
  • When? (the days, dates and hours of work including a proviso for weather or other unforseen delays)
  • Why? (an explanation of the treatment being applied and the expected benefits)
  • How? (a general sequence of construction events including their potential impacts on travel times and roadway use)
  • Who? (the names of those involved with the project including who to contact with questions)

A thoughfully concieved and executed notification plan can greatly enhance public satisfaction with pavement recycling.

General Preparation

  • Pre-construction personnel training on HIR for agency, contractor, quality assurance, inspectors
  • Identify all utilities and any underground obstructions within the recycling area and check for flammable vapors 
  • Clean roadway of dirt, vegetation, standing water, combustible materials and raised roadway markings
  • Remove thermoplastic markings and excessive rubberized crack filler by cold planing or other approved method, if required
  • Protect vegetation from excess heat during production by watering or using heat shields
  • Set up traffic control so traffic can be safety piloted around the recycling train
  • Correct drainage issues and repair any isolated base failures
  • Perform any required grade or cross-slope corrections that cannot be addressed by HIR (typically > 0.5%)