Key Biscayne Master Plan 043944000.18w_Key_Biscayne_MP(forJooMag) | Page 100

VILLAGE OF KEY BISCAYNE UNDERGROUNDING OF UTILITIES — MASTER PLAN
It is recommended these projects be reviewed for traffic impacts with this
TMP to coordinate impacts to the greatest extent practical. It is not possible
to predict private construction activities at this time. The Village’s Public
Works Department should use this TMP to guide them in the issuance of
MOT permits and coordinate the efforts for private construction community
within Village construction project areas.
Once MOT permits are issued and the MOT measures are implemented
in the field, the operations should be monitored closely for effectiveness.
Observed issues should be corrected through appropriate modification of
the approved MOT based on these observed operational conditions.
9.5
Traffic Control Considerations:
Traffic Control Considerations on Main North-South
Thoroughfares:
The following describes the traffic control considerations on the main north-
south thoroughfares through the Village. It outlines restrictions to impacting
these thoroughfares and alternate routes if one of the thoroughfares were to
be impacted for construction.
The traffic control considerations on the main north-south thoroughfares are
as follows:

From Ocean Lane Drive to Mashta Drive, Crandon Boulevard,
Fernwood Road, and Harbor Drive run parallel to each other
» Impacts to Fernwood Drive and Harbor Drive shall be
minimized as much as possible. Intermittent closure of a single
lane could be allowed if flag men are used or if two-way traffic
can be maintained at all times.
» Only two of the three roads can be impacted at the same
time. If either Fernwood Drive and Harbor Drive are impacted,
Crandon Boulevard should be fully open to traffic
» Fernwood Drive and Harbor Drive can be closed to traffic
(open to local traffic only) only if required, preferably for a single
block at a time and for a brief period. Both roads should not
be closed to two-way traffic at the same time.
96

From Harbor Drive to N Mashta Drive, W Mashta Drive is the only
thoroughfare to provide access to Mashta Island; therefore, the
roadway cannot be closed
» Work to be conducted from the road shoulder without
impacting the travel lanes
» Intermittent closure of a single lane is allowed if flag men are
used
Traffic Control Considerations for the other Roads:
The rest of the Village is comprised of a variety of commercial and local
roads. We have classified them as follows for the purposes of maintaining
traffic during construction:
 Narrow road – use for one-way detour only if needed
 Wider road – use for two-way detour as needed
These are color coded and separated in the maps beginning on page 98.
The intent is to have available detour options as work occurs on the main
roads (thoroughfares) and there is the necessity to detour traffic through the
local roads. The local roads should always maintain access to local traffic
and access to driveways.
The exhibits provide suggested cross streets for transportation
management based on field visits conducted in June 2018 to verify lane
widths are adequate to accommodate the detoured traffic. It should be
noted that no singular cross street is recommended for a detour, and where
possible, multiple adjacent roadways are recommended. By providing
multiple options for the detour, the impact to the residential cross streets
can be minimized. To promote drivers to use the earlier detour options and
avoid the majority of drivers waiting until the last cross street before the
road closure to detour, it is recommended variable message signage be
provided so specific road names can be recommended for the detour.
The specific timing and implementation of closures and lane restrictions
will be detailed in the MOT plan to be submitted by the contractor.
Specific conditions and recommendations contained in this TMP will
be communicated to the contractor in the construction documents.
The contractor shall always maintain access to local traffic and access
to driveways.