2 | SDOT CLIENT ASSISTANCE MEMO 2111
II. Base Map Requirements
The base map for your TCP must include a title block,
existing channelization, and existing site conditions.
See below for a list of all requirements.
A. Title Block Requirements
In low-center or lower right corner of plan, include:
Project address
Brief description of work
In upper-center of plan, include:
Label as ‘Work Hours’ or ‘Non-work Hours’
Phase of work
In upper right corner of plan, include:
Label as ‘Traffic Control Plan’
Street Use permit number (if known)
Hours the TCP will be in place
24-hour contact person’s name, company,
phone number, and email address
North arrow
Scale bar if feasible (preferred scales: 1:20,
1:30, 1:40, 1:50, 1:60)
In left center of plan, include:
Standard notes:
1. Reserve curb space with Traffic Permits
684-5086 in Pay Station blocks
2. Haul Routes to be submitted to Don Smith,
3. Metro trolley coaches cannot shift more
than 9' from the center of their overhead
lines. Contact Metro Trolley at 477-1150
or trolley.impacts@kingcounty.gov. For
Metro non-trolley coach or other transit
agency relocations contact 477-1140 or
construction.coord@kingcounty.gov
4. Sidewalks are either open or not open. A
sidewalk is closed if a minimum 4' path
cannot be maintained measured from
property line, or 5 ½' if created from face
of curb
5. Standard Advance Warning Signs shall
be used for plates or rough road during
after-hours, including “Motorcyclist” sign
6. If only one lane is open in a direction,
that lane shall be a minimum of 11' wide,
unless spotter/flaggers are used, in which
case the lane can be a minimum of 10'
7. Flaggers shall be used in accordance with
WAC 468-95-302. UPO will be required if a
traffic signal could be countermanded
B. Existing channelization
The TCP must show current channelization of the ROW
impacted by the work. This information may be found
using the TCP Base Map web tool provided by SDOT at
http://web6.seattle.gov/sdot/trafficcontrolplanmap/.
If the TCP Base Map web tool does not reflect current
conditions, a plan must be developed that includes:
Channelization lines (including painted
crosswalks)
Lane widths
Curb lines (face of curb)
Sidewalks
ROW limits
Adjacent property addresses
Street names
Street centerline
Other traffic controls currently in-place
C. Existing Site Conditions
Existing site conditions such as access points, transit
facilities, curb space, and other ROW elements must
be shown on the TCP. Existing site conditions may
include:
Business access points and driveways
Bicycle facilities
• Protected Bicycle Lanes (PBL) -- bicycle
lanes physically separated from vehicles by
barriers or other traffic-control devices
• “Cycle Tracks”
• Bicycle lanes delineated by painted striping
on pavement
• City-designated bike ways and greenways
• Refer to the City of Seattle Bike Master Plan
for additional information about existing and
proposed bicycle infrastructure
Transit zones including bus stops, overhead
trolley lines, at-grade Street Car and Light rail
tracks.
Visibility restrictions such as trees, power
or utility poles, and/or street furniture (such
as benches or public art) that may affect
pedestrian, bicycle, or vehicle traffic.
Show parking lanes (also known as “curb
space”) in or adjacent to your work zone and
also on nearby streets that your work will affect.
Indicate parking designations, such as 3-minute
passenger or load zones, pay-to-park parking
stalls, parking meter locations, and residential
parking zones (RPZs).