City of Frisco Engineering Standards

Engineering Standards
2. Traffic signals at Type A-A, A-B, and B-B intersections – The developer on each corner of a
Type A-A, A-B, or B-B intersection is responsible for a portion of the cost of designing and
constructing a future traffic signal at the intersection and shall escrow such funds with the
City at the time of development. Seventy-five percent (75%) of the total cost of designing
and constructing the traffic signal shall be divided equally among each of the four corners of
the intersection and then proportionally assessed to each lot within a fifteen (15) acre area at
each corner, measured eight hundred eight feet (808’) in each direction from the corner. In
the case of a three-leg intersection, an imaginary fourth leg shall be assumed for the purposes
of creating four corners. As each lot develops as a portion of each corner, the trips generated
by that land use shall be calculated and compared to the trips that would be generated by the
total fifteen (15) acre area, the ratio of which determines the proportion of the traffic signal
escrow that shall be assessed to that lot. If a preliminary site plan has not been approved for
the whole fifteen (15) acre area, the land uses of a typical shopping center shall be assumed.
If there are less than fifteen (15) acres that can be developed on a corner, the trips generated
by a developing lot will be compared to a hypothetical fifteen (15) acre shopping center.
2.10 Street Lighting
A. The following standards shall apply to all Type A and Type B Thoroughfares:
1. Street lighting shall be placed in the medians, with spacing not to exceed one hundred eighty
feet (180’) and no closer than one hundred fifty feet (150’) depending on median breaks and
intersections.
2. Unless a photometric analysis suggests the use of a different type of luminaire, street lighting
shall use Full Cutoff, Type 3 Luminaires on thoroughfares with one hundred twenty feet
(120’) of ROW and Full Cutoff, Type 2 Luminaires on thoroughfares with one hundred feet
(100’) of ROW.
3. Die cast aluminum or extruded aluminum with segmented internal reflector, 250-watt Metal
Halide single or double head with davit arm(s) traffic black (RAL9017-traffic black) in color,
or the equivalent approved by the Director of Engineering Services shall be used.
4. Street lighting shall be installed prior to final acceptance of the construction of a
thoroughfare. When partial thoroughfares are constructed, the Director of Engineering
Services may allow the payment of a street light fee in lieu of installing the required lighting.
Where property lines bisect thoroughfares, each Owner (Developer) is responsible for onehalf
the total cost of fully developed street lighting along that segment of the thoroughfare.
5. When development occurs along a Type A or Type B thoroughfare, the Owner (Developer)
shall pay a street light fee to reimburse the City for the future or past installation of street
lighting. The fee shall be paid prior to final acceptance of the development and the amount
shall be determined by multiplying the then current fee rate by the amount of linear frontage
the developing lot has along one or both sides of the thoroughfare.
6. Poles are to be round and tapered with a maximum height of thirty feet (30') in accordance
with the City’s Standard Details and specifications.
7. Type A ground boxes with concrete aprons are required in accordance with the City’s
Standard Details and specifications.
Section 2 – Thoroughfare Design Requirements May 2012 Page 2-52