requirements contracts for engineering design and related services ...

e) Indicate all existing lane delineations and dimensions. Review and identify any inconsistencies in the official
marking drawings and the field conditions within the project limits, including all terminal intersections. A scaled
CAD drawing of the existing conditions must be submitted that should include existing lane
configuration/assignments, curb regulations, bus stop locations, turn prohibitions, driveways, fire hydrants,
sidewalk widths, street furniture, crosswalk widths and type (school, regular and hi-visibility), type of traffic
controls (i.e., signal, stop, etc.) and any other features that would impact traffic flow, and affect curb use as well
as design considerations.
f) Conduct a field observation to identify instances of double or illegal parking, queue length and number of
queued vehicles (if possible), and any other observations that are relevant to reflect existing condition LOS.
g) Identify the additional research and analysis of accident data that is needed to provide for the proper
completion of the other Tasks included in the specific requirements of this contract.
The Traffic Study Program should include a graphic presentation of all intersections to be included in the traffic study as
well as the CAD file as described above.
2. The Consultant shall submit the proposed Traffic Study Program to the Commissioner for review and approval.
3. The Consultant shall submit for approval, the names and experience portfolios of all persons and subcontractors
proposed for use in connection with the Traffic Study Program including traffic counts prior to start of work.
4. Upon approval of the proposed Traffic Study Program, by the Commissioner, the Consultant shall perform the
required ATR and TMC, vehicle classification counts, pedestrian/bicycle counts, etc. to identify peak hours for traffic, transit
and pedestrian analyses; determine traffic volumes to be used for levels of service analyses, signal warrant studies,
pavement design(s), etc.; and to estimate the percentage of truck volumes and number of axles as necessary. Vehicle
classification counts shall identify heavy vehicles including trucks and buses by number of axles.
5. The Consultant shall research the crash records of the New York City Police Department and the New York State
Department of Transportation to obtain the latest available (three-year period) crash data (for vehicular, pedestrian and
bicycle accidents) at intersections and mid-block locations within the project limits (including all terminal intersections and
contiguous to the project limits, where needed). The Consultant shall identify high-crash locations and make
recommendations to improve pedestrian, bicycle and vehicular safety. A high crash location is one where there were 48 or
more total crashes (reportable and non-reportable) or five or more pedestrian/bicycles injury crashes in any consecutive 12
months of the most recent 3-year period for which data is available.
6. The Consultant shall visit the site and become familiarized with the site conditions, analyze the latest available
three-year accident data to determine accident patterns and probable contributing factors, and shall identify all
substandard conditions contributing to the accidents, and propose appropriate mitigation measures.
7. The Consultant shall contact the respective NYCDOT’s Borough Commissioner’s Office for records of all
outstanding traffic-related (i.e., pedestrian, bicycle, and vehicular) operational and safety complaints submitted by the
Community Board(s) having jurisdiction over the project area, for consideration and improvements.
8. The Consultant shall contact the Department of City Planning (DCP) and NYC Economic Development
Corporation (EDC) for information about any planned and/or approved future developments/actions (to occur within the
project’s design year) located within or at the close proximity of the project limits that can have potential impact on traffic
throughout the project area.
9. The Consultant shall consider the traffic generators, land use, zoning, bus and bicycle routes, etc. that can impact
the present and future traffic operations, and incorporate information with appropriate maps in the report.
10. In accordance with the NYCDOT procedures, the Consultant shall prepare signal warrant studies for unsignalized
intersections that exhibit operational and safety problems in accordance with the approved Traffic Study Program. The
Consultant shall prepare a left-turn signal warrant study if a left-turn phase is proposed. The signal warrant forms may be
obtained from NYCDOT’s Signals Division. The completed forms shall be submitted to Signals Division for review and
approval.
NYC Department of Design and Construction
Infrastructure, October 2012
GR-24