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CLIENT: CITY OF EVANSTON CHRISTOPHER B. BURKE ENGINEERING, LTD.PROJECT: EXISTING STREET LIGHT EVALUATION 9575 W. Higgins Road, Suite 600DATE STUDY PERFORMED: 8/21/2017 Rosemont, Illinois 60018CBBEL PROJECT NO.: 170054

APPROXIMATELY 1120'

COLLECTOR

MEDIUM

4-WAY UNCONTROLLED INTERSECTION AT SIMPSON STREET AND DEWEY AVENUE

4-WAY STOP AT SIMPSON STREET AND ASHLAND AVENUE

1-WAY STOP AT SIMPSON STREET AND JACKSON STREET

4-WAY SIGNALIZED INTERSECTION AT SIMPSON STREET AND GREEN BAY ROAD

COBRA HEAD INDUCTION HEIGHT: 25'-30' WATTAGE: 200W

MID BLOCK RESIDENTIAL

15

LIGHT

7

7

5

1

1

0

40

5

5

5

5

NARRATIVE: THE AREA STUDIED RUNS ALONG SIMPSON STREET AND SPANS ABOUT 1120 FEET. THE AREA WAS SELECTED DUE TO BEING NEAR A PARK.

NORTH SIDE DEWEY AVENUE TO ASHLAND AVENUE

SOUTH SIDE DEWEY AVENUE TO ASHLAND AVENUE

NORTH SIDE JACKSON STREET TO GREEN BAY ROAD

NORTH SIDE ASHLAND AVENUE TO JACKSON STREET

SOUTH SIDE ASHLAND AVENUE TO JACKSON STREET

SOUTH SIDE JACKSON STREET TO GREEN BAY ROAD

WIDTH OF PARKWAY WEST (FT):

LIGHTING STUDY AREA SIMPSON SUMMARY

WIDTH OF STREET (FT):

WIDTH OF EAST SIDEWALK (FT):

WIDTH OF WEST SIDEWALK (FT):

WIDTH OF PARKWAY EAST (FT):

LOCATION:

LENGTH:

ROADWAY CLASSIFICATION:

PEDESTRIAN ACTIVITY:

TRAFFIC CONTROL:

TYPE OF LIGHTS:

LOCATION OF LIMITS:

NUMBER OF LIGHTS:

CANOPY DENSITY:

NUMBER OF TREES:

SIMPSON STREET FROM DEWEY AVENUE TO GREEN BAY ROAD

SUBJECTIVE ASSESMENT: COBRA HEAD-STYLE METAL HALIDE DAVIT ARM LIGHT POLES EXIST IN A STAGGERED CONFIGURATION WITH FAIR POLE SPACINGWITHIN THE STUDY AREA LIMITS. DUE TO FAIR POLE SPACING AND EXTENSIVE AMBIENT LIGHTING WITHIN THE STUDY AREA LIMITS, THE ROADWAY,SIDEWALKS AND PARKING STALLS ARE SATISFACTORILY ILLUMINATED.

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LIGHTING STUDY LIMITS

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GOOGLE EARTH AERIAL

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CHRISTOPHER B. BURKE ENGINEERING, LTD.

9575 W Higgins Road, Suite 600 Rosemont, Illinois 60018-4920 Telephone (847) 823-0500 Fax (847) 823-0520

STREET LIGHTING MASTER PLAN

EXISTING CONDITIONS STUDY AREA SIMPSON STREET

Location: Simpson Street from Dewey Avenue east to Green Bay Road

Area Justification: Park

Foster Park exists on the southeast corner of Simpson Street and Dewey Avenue and spans east to Ashland Avenue.

Figure 1 – Simpson Street and Dewey Avenue Intersection: Four-way stop-sign controlled intersection. Tallmadge light poles are located on the northeast and southwest corners that provide minimal illuminance to the intersection. The typical Tallmadge light pole provides excessive horizontal light, in the form of a glare. Two cobra head-style induction davit arm light poles are located on the northwest and southeast corners that provide the majority of illuminance at the intersection. Various luminaires within the study area limits have heavy tree canopies which affect the luminaire’s performance.

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Figure 2: Cobra head-style induction davit arm light poles exist in a staggered configuration with fair pole spacing within the study area limits. Due to fair pole spacing and extensive ambient lighting within the study area limits, the roadway, sidewalks and parking stalls are satisfactorily illuminated.

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Figure 3: The lighting at Foster Park located at the southeast corner of Simpson Street and Dewey Avenue provides extensive ambient lighting that aids in illuminating the roadway.

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CHRISTOPHER B. BURKE ENGINEERING, LTD.9575 W. Higgins Road, Suite 600Rosemont, Illinois 60018

NORTH SIDEWALK SOUTH SIDEWALK(5' SETBACK)

1 0.20 0.83 1.30 1.00 2.50 2.40 1.73 0.302 0.20 0.77 1.20 0.90 2.10 1.70 1.70 2.603 0.20 0.47 0.80 0.40 1.30 1.30 1.50 1.904 0.10 0.47 0.50 0.80 0.50 1.10 0.90 1.105 0.10 0.90 0.30 2.30 0.10 1.00 0.57 0.606 0.01 0.97 0.40 2.50 0.10 1.60 0.67 0.307 0.20 1.00 0.80 2.00 0.30 1.30 0.63 0.30

AVERAGE (fc) AVE/MIN 8 1.20 1.33 1.40 1.40 0.60 1.00 0.60 0.201.07 10.7 9 1.60 1.40 1.50 1.10 0.80 0.10 0.33 0.100.55 55.1 10 2.10 1.23 1.30 0.30 0.80 0.50 0.47 0.100.88 1.9 11 0.80 0.77 1.00 0.50 0.80 0.60 0.50 0.100.93 2.8 12 0.50 0.67 1.20 0.30 1.10 0.60 0.63 0.200.68 6.8 13 0.50 0.93 1.60 0.70 1.90 1.50 1.30 0.50

14 0.01 0.54 0.80 0.80 1.10 2.20 1.50 1.20

AVERAGE (fc) AVE/MIN1.07 10.7:10.90 4.0:1

SOUTH PARKING LANESOUTH SIDEWALK

ILLUMINANCE MEASUREMENT SUMMARY

ROADWAYNORTH SIDEWALK

LUMINAIRE TYPE COBRA HEAD INDUCTION

NORTH PARKING LANE

POLE CYCLE DISTANCE BETWEEN LUMINAIRES 170 FT

(LOCATIONS PER ANSI/IESNA RP-8-14; VALUES IN FOOT-CANDLES AT GROUND LEVEL)NORTH

PARKING LANESOUTH

PARKING LANECONFIGURATION STAGGERED

STUDY AREA EXISTING CONDITIONS RESULTS

MEASURED ROADWAY ILLUMINATION LEVELIESNA RECOMMENDED LEVELS (COLLECTOR/MEDIUM)

STUDY AREA SIMPSON STREET EXISTING ROADWAY PHOTOMETRIC VALUES

LIMITS DEWEY-GREEN BAYPOINT 20' WB LANE 20' EB LANEPOLE SPACING 85 FT

LOCATION SUMMARY TABLE OF ILLUMINANCE MEASUREMENTS (ASHLAND TO DEWEY)ROAD SIMPSON STREET

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AVERAGE (fc) AVE/MIN0.92 1.9

AVERAGEILLUMINANCE (fc)

1.711.080.670.570.560.480.891.40



MEASURED INTERSECTION ILLUMINATION LEVELIESNA RECOMMENDED LEVELS (COLLECTOR/LOCAL)

SIMPSON STREETDEWEY AVENUE

STAGGEREDTALLMADGE/COBRA HEAD INDUCTION

CROSS SECTIONWIDTH

424260

667

LOCATION SUMMARYROADLIMITS

CONFIGURATIONLUMINAIRE TYPE

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6060604242

NUMBER OF POINTS

7 6

6

710101010

66

77

666

DEWEY AVENUE EXISTING INTERSECTION PHOTOMETRIC VALUES

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ILLUMINANCE MEASUREMENT SUMMARY

INTERSECTION

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CROSS SECTION RECORDED

TABLE OF ILLUMINANCE MEASUREMENTS (LOCATIONS PER ANSI/IESNA RP-8-14; VALUES IN FOOT-CANDLES AT GROUND LEVEL)

123

DISTANCE PER CROSS SECTIONRECORDED/CROSS SECTION

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AVERAGE (fc) AVE/MIN1.21 1.3

AVERAGEILLUMINANCE (fc)

1.301.371.070.941.261.111.071.57



MEASURED INTERSECTION ILLUMINATION LEVELIESNA RECOMMENDED LEVELS (COLLECTOR/LOCAL)

8 36 6 6

6 60 10 67 42 7 6

4 60 10 65 60 10 6

2 42 7 63 60 10 6

RECORDED WIDTH RECORDED/CROSS SECTION CROSS SECTION1 36 6 6

TABLE OF ILLUMINANCE MEASUREMENTS (LOCATIONS PER ANSI/IESNA RP-8-14; VALUES IN FOOT-CANDLES AT GROUND LEVEL)

CROSS SECTION CROSS SECTION NUMBER OF POINTS DISTANCE PER

LUMINAIRE TYPE COBRA HEAD INDUCTION

ASHLAND AVENUE EXISTING INTERSECTION PHOTOMETRIC VALUES

ILLUMINANCE MEASUREMENT SUMMARY LOCATION SUMMARYROAD SIMPSON STREET

INTERSECTION LIMITS ASHLAND AVENUECONFIGURATION STAGGERED

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