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Standard Roadway Construction / Traffic Control / Bridge Construction Details BDC01MR
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NJDOT Design Manual - Roadway
14-1
Traffic Control Plans and Details
SECTION 14
GUIDELINES FOR TRAFFIC CONTROL
PLANS AND DETAILS
14-01
INTRODUCTION
This Section along with the Traffic Control Details presented in the
Standard
Roadway Construction / Traffic Control / Bridge Construction Details
and
the Traffic Control Plans and Traffic Control and Staging Plans presented in the
Sample Plans
were prepared to provide designers with general guidelines and
examples of minimum desirable applications for typical situations requiring lane
closures and/or lane shifts. This information may be used along with the current
Manual on Uniform Traffic Control Devices
(MUTCD) Part VI to prepare more
detailed and site specific Traffic Control Plans that will enable the contractor to
construct the project with adequate consideration of safety to motorists, pedestrians
and construction workers.
Designers should not refer to or use the Traffic Control Details without proper
evaluation of the specific site constraints and construction procedures required to
construct the project. Traffic Control Plans should be prepared in accordance with the
current
Sample Plans
. The Traffic Control and Staging methods established for
each project should be consistent with the general provisions of this Section and
should be based on good safety practices, engineering judgement, the speed and
volume of traffic, the duration of the operation, the exposure to potential hazards, sight
distance constraints and the physical features of the roadway including horizontal
alignment, vertical alignment and the presence of intersections and driveways.
14-02
GENERAL
The first two sheets of the Traffic Control Plans should be Standard Traffic Control
Detail sheets TCD-1A and TCD-1B as appropriately modified for individual project
needs. These sheets contain a standard legend of typical traffic control devices,
general traffic control notes, an escape ramp detail, a typical section for placement of
construction barrier, a table showing recommended spacing of the channeling devices
and a table showing recommended sight distances to the beginning of channelizing
tapers. The legend and general traffic control notes should be reviewed and modified
to include other project specific symbols and notes as necessary for each project. The
standard sheets can also be modified to include other project specific information
necessary to adequately address traffic control needs. Where required for clarification,
sectional views showing the placement of traffic control devices adjacent to the
traveled way and the work site should be provided. BDC01MR
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Traffic Control Plans and Details
Additional Traffic Control Plans should follow standard sheets TCD-1A and TCD-B.
These additional plans should be included to show plan views of project specific work
sites when those locations need to be represented or where design features of traffic
control devices (such as the type of precast construction barrier) or temporary
pavement markings need to be indicated. The scale of the Traffic Control Plans should
be selected so that the optimum amount of information is shown on a minimum
number of plan sheets. The Traffic Control Plans should include a tabulation of the
channelization devices needed for the project.
As a minimum, Traffic Control Plans should include the following items:
1.
Required lane widths for each staging plan
2.
Grading for temporary roadways and cross-overs
3.
Detours with respective detour signing
4.
Pay items for temporary work
5.
Temporary drainage associated with traffic staging
6.
Temporary staging for drainage and other utilities
7.
Temporary traffic signals and associated signal phasing design
8.
Signing for each staging plan
9.
Traffic control and safety devices that are necessary for each stage of
construction
10.
Township and county
11.
Graphic scale and north arrow
12.
Allowable working hours
13.
Accommodation for Pedestrian traffic (i.e. locations of temporary sidewalks)
14.
Appropriate use of temporary / permanent barriers and end treatments
15.
Appropriate plans and specifications to address safety concerns BDC01MR
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Traffic Control Plans and Details
14-03
TRAFFIC CONTROL AND STAGING PLANS
Traffic Control and Staging Plans should be utilized when a staging or sequence of
construction needs to be specified. Notes pertaining to the various stages of
construction should be included on these plans. The notes should thoroughly describe
each phase of construction in the sequence to be performed.
The Legend on standard sheets TCD-1A and TCD-1B should be modified to show
symbols for the work to be performed during each stage of construction and for work
completed while construction is being performed during subsequent stages. When
temporary pavement areas are required, a typical section should be provided.
During all phases of paving, staging should provide for a minimum exposure to drop-
offs and uneven pavement adjacent to and between travel lanes.
To improve the riding quality of new bituminous concrete pavements, wherever
practical, the top layer of the bituminous concrete surface course should be paved as
a single stage of construction for the full width of the traveled way, shoulder and
auxiliary lanes. Therefore, development of the Traffic Control and Staging Plans for
projects involving paving operations should specify a Construction Sequence in which
work progresses up to the bottom of the top layer of the surface course. The top layer
should be shown as the final paving stage.
Designers should, upon completion of Traffic Control Plans, review the use of Unbound
Paving Materials in those portions of roadway under improvement which will incur
extensive traffic as a result of stage construction. In these situations, the designer
should substitute Bituminous Stabilized Base Course for the Unbound Material. This
substitution may be made without a Supplemental Pavement Recommendation. If this
situation occurs during construction, the Resident Engineer should make this change.
14-04
TRAFFIC IMPACT REPORT
As part of the development of the Traffic Control Plans, designers should conduct an
analysis of construction related impacts. Findings should be presented in a detailed
Traffic Impact Report that addresses the following items:
1.
The existing traffic volumes and capacity data on the roads likely to be
substantially impacted.
2.
The projected traffic data at the start of construction including nearby highway
construction projects as well as private construction projects.
3.
The potential impacts of the construction on traffic through the project and
along any detours. BDC01MR
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Traffic Control Plans and Details
4.
Recommendations for traffic impact mitigation, e.g., nighttime work, restricted
hours of operation, number of lanes available for traffic, width of lanes,
requirement for alternating traffic, staging requirements, public information
program, and transportation demand management strategies such as park and
rides, shuttle buses, flextime, etc.
The Bureau of Transportation and Corridor Analysis should be consulted during the
development and approval of the data in items 1, 2 and 3. The Regional Traffic
Operations Unit should be consulted during the development and approval of the
recommendations contained in item 4.
14-05
DEVELOPMENT OF TRAFFIC CONTROL PLAN DESIGN
PARAMETERS
The Department recognizes the need to effectively and efficiently manage traffic
through construction projects in order to reduce congestion, maintain high levels of
safety for workers, pedestrians and motorists, and minimize impacts to the local
community both business and residential.
To this end, the scoping, design, scheduling and construction of projects should be
accomplished in a manner that will provide a high level of safety for workers and the
traveling public, minimize congestion and community impacts by maintaining levels of
service close to preconstruction levels and provide the contractor with adequate access
to the roadway to complete the work efficiently, while meeting the quality requirements
of the contract.
In order to achieve these objectives, designers can utilize the NJDOT Road User Cost
Manual to evaluate potential alternatives, in terms of cost to the traveling public.
Projects should be designed to minimize road user costs impacts. This may be
accomplished through a variety of means including, but not liminited to, reduced
daytime hours, nighttime operations, detours, diversionary roads, crossovers, use of
shoulders as travel lanes, temporary roads and bridges, a