PHASE 3 JFAC STUDYNeighborhood Impacts

& Cost Estimates

PRESENTED BY:

May 2019

2AGENDA

1. BUCK C MODIFIED IMPACTS SITE LIGHTING NOISE GENERATORS LANDSCAPED AREA COST ESTIMATES

2. PLAYING FIELD SCENARIO IMPACTS SITE LIGHTING NOISE GENERATORS COST ESTIMATE

Buck C Modified - Site Plan

Playing Field Scenario - Site Plan

3BUCK C MODIFIED

Fire Logistics

County Office

Police Storage

APS Classrooms

OR

OR OR

PSCEM

APS F&O APS Classrooms

County Storage

4BUCK C MODIFIED - SITE LIGHTING

EXISTING LIGHTS TALL FIXTURES DIRECTED OUTWARD POOR LIGHT SPREAD CONTROL LOW EFFICIENCY

PROPOSED LED FIXTURES LOWER OVERALL HEIGHT DIRECTED DOWNWARD MULTIPLE LIGHT SPREAD OPTIONS HIGH EFFICIENCY

5BUCK C MODIFIED - SITE LIGHTING

ACZO REQUIREMENT:1 footcandle of light at the surface during hours of darkness (for parking areas and walkways).

STRATEGIES:• Orient fixtures away from neighboring properties• Utilize fixtures with features to minimize light spill in unwanted directions• Lighting will be on during hours of operation. Lighting schedule pending final uses.

FINDINGS:It is feasible to light the site to the ACZO minimum without light spill on to the neighboring properties.

Buck 1

Buck 2

Buck 3Buck 4

6BUCK C MODIFIED - SITE LIGHTING

SYMMETRIC DISTRIBUTIONUsed in center of parking lots for light distribution in all directions.

ASYMMETRIC DISTRIBUTIONUsed along South property line to direct light distribution away from neighboring

residential properties.

7BUCK C MODIFIED - NOISE GENERATORS

NOISE SOURCE +/- @ SOURCEFIRE VEHICLES BACKUP ALARM2 95 dBABACKUP ALARM AT COUNTY STORAGE2 95 dBABUS ROUTE (APS CLASSROOMS ONLY)1 90 dBAPOLICE VEHICLES BACKUP ALARM2 95 dBAEQUIPMENT/MACHINERY (APS F&O ONLY) 100 dBA

APPROXIMATE DECIBEL (dBA) LEVEL AT PROERTY LINE

ARLINGTON COUNTY NOISE ORDINANCE (dBA LIMITS):1

M-1 & CM = 70 dBA CONTINUOUS & 120 dB IMPULSIVEC-O-1.0 = 65 dBA CONTINUOUS & 100 dB IMPULSIVER-5 = 60 dBA CONTINUOUS & 95 dB IMPULSIVE

1dBA limits are for sources other than motor vehicles per Arlington County Noise Ordinance.2Audible signal devices are exempt from the limits indicated.

Buck 1

Buck 2

Buck 3Buck 4

COMMON NOISE LEVELS (FOR REFERENCE)40 QUIET OFFICE, LIBRARY50 REFRIGERATOR, LARGE OFFICE60-85 VACUUM CLEANER80 DOORBELL, TELEPHONE85 HEAVY TRAFFIC100 FACTORY MACHINERY, WOODSHOP120 CHAINSAW, HAMMER, CONCERT

R-5

C-O-1.0

M-1

8BUCK C MODIFIED - LANDSCAPED AREA

EXISTING LANDSCAPING

MAXIMUM AREA FOR EXPANDED LANDSCAPINGAREA FOR EXPANDED LANDSCAPING VARIES BASED ON THE SELECTED USES AND ASSOCIATED PARKING REQUIREMENTS.

OFFICE USE OPTIONS:HIGHEST PARKING REQUIREMENTS - LIMITED LANDSCAPING AREA

CLASSROOM USE OPTIONS:LOWEST PARKING REQUIREMENTS - GREATEST LANDSCAPING AREA

Buck 1

Buck 2

Buck 3Buck 4

9BUCK C MODIFIED - COST ESTIMATE

BUILDING/AREABUCK 1BUCK 2BUCK 3BUCK 4GENERAL SITE

* Buck 1 is inclusive of the approved FY19 CIP bond funding request of $3M

ESTIMATED COST

(MILLIONS)$8-$10*

$14.5-$20$7-$9

$14-$24$4.0

Buck 1

FIRE LOGISTICS & FACILITIES STORAGE

APS CLASSROOMS ORCOUNTY OFFICE

POLICE VEHICLE & EQUIPMENT STORAGE

PSCEM OFFICES ORAPS CLASSROOMS ORAPS FACILITIES & OPERATIONS OFFICES

Buck 2

Buck 3Buck 4

10PLAYING FIELD SCENARIO

Recreational Field

Multi-Use HS Field

Support Facility

Youth / Rec Baseball Field

11PLAYING FIELD SCENARIO - SITE LIGHTING

Recreational Field

Multi-Use HS Field

Youth / Rec Baseball Field

ACZO REQUIREMENT:1 footcandle of light at the surface during hours of darkness (for parking areas and walkways).

STRATEGIES:• Limit site lighting to the parking area, away from neighboring residential

properties.

FINDINGS:It is feasible to light the parking area to the ACZO minimum without light spill on to the neighboring properties.

12PLAYING FIELD SCENARIO - NOISE GENERATORS

Recreational Field

Multi-Use HS Field

Youth / Rec Baseball Field

NOISE SOURCE +/- @ SOURCESPORTING EVENT1 110 dBA

APPROXIMATE DECIBEL (dBA) LEVEL AT PROERTY LINE

ARLINGTON COUNTY NOISE ORDINANCE (dBA LIMITS):1

M-1 & CM = 70 dBA CONTINUOUS & 120 dB IMPULSIVEC-O-1.0 = 65 dBA CONTINUOUS & 100 dB IMPULSIVER-5 = 60 dBA CONTINUOUS & 95 dB IMPULSIVE

1Athletic events or other activities officially sponsored by the Arlington CountyDepartment of Parks and Recreation are exempt from the limits indicated.

COMMON NOISE LEVELS (FOR REFERENCE)40 QUIET OFFICE, LIBRARY50 REFRIGERATOR, LARGE OFFICE60-85 VACUUM CLEANER80 DOORBELL, TELEPHONE85 HEAVY TRAFFIC100 FACTORY MACHINERY, WOODSHOP120 CHAINSAW, HAMMER, CONCERT

R-5

C-O-1.0M-1

M-1

13PLAYING FIELD SCENARIO - COST ESTIMATE

BUILDING/AREAGENERAL SITE

ESTIMATED COST

(MILLIONS)$13.5

14

PHASE 3 JFAC STUDIES

QUESTIONS?