SITE DESIGN: BLDG LOCATION/IMPROVEMENTS correct answersALL BLDGS DISRUPT DRAINAGE.
ACCOMMADATE INCREASED RUNOFF. POSITIVE DRAINAGE AWAY FROM BLDGS.
SITE DESIGN: DRAINAGE TYPES correct answersABOVE GROUND OR BELOW GROUND. ABOVE: PERVIOUS
PAVING, SHEET FLOW, GUTTERS, SWALES, CHANNELS, AND RUNOFFS. BELOW: PERFORATED DRAINS,
ENCLOSED STORM SEWERS TO CITY LINES OR TO NATURAL FEATURE
SITE DESIGN: PAVING correct answersMINIMUM SITE PAVING TO BE 1.5% ABOVE GROUND. BELOW
GROUND 0.3%
SITE DESIGN: UNDERGROUND ITEMS correct answersSTORM DRAINS COLLECT WATER FROM ROOF
DOWNSPOUTS, DRAIN INLETS, CATCH BASINS, AND DRAIN TILES. DRAIN INLET: OPENING IN GROUND
COVERED W/ METAL GRATE. CATCH BASIN: UNDERGROUND RESERVOIR THAT HAS A SUMP BUILT INTO IT,
DEBRIS SETTLES SO IT DOESN'T CLOG PIPING. LARGE STORM SEWER SYSTEMS MUST HAVE MANHOLES.
STORM SEPARATE FROM SANITARY
SITE DESIGN: DRAINAGE SYSTEM REQUIREMENTS correct answersBASED ON SIZE OF AREA TO BE
DRAINED, RUNOFF COEFFICIENT, AND AMOUNT OF WATER TO BE DRAINED DURING MOST SEVERE
STORM. COMMON TO USE 25 YEAR STORM. IF RUNOFF EXCEEDS UTILITIES A HOLDING POND MAY BE
BUILT, COLLECTS WATER TO RELEASE AT CONTROLLED RATE.
UTILITIES correct answersCAN INCLUDE: SANITARY, STORM, WATER, GAS, ELECTRICITY, STEAM,
TELEPHONE, INTERNET, CABLE. SANITARY/STORM TAKE PRECEDENCE B/C THEY NEED GRAVITY TO FLOW.
MORE FLEXIBILITY IN ROUTING AND LOCATION WHERE GRAVITY DOESN'T MATTER.
UTILITIES: SEWERS correct answersMIN SLOPE IS 0.5% TO 2.0% DEPENDING ON PIPE SIZE. GREATER
SLOPE FOR SMALLER PIPES.
VEHICLES: CIRCULATION correct answersROADS SHOULD BE WIDE ENOUGH FOR TWO VEHICLES TO PASS
MIN. CURVES GRADUAL AND FOLLOW TOPO SO NO BLIND CURVES. PROVIDE DRIECT ACCESS TO
PARKING AND BLDG W/O EXCESSIVE DRIVES, TURNAROUNDS, DEAD ENDS, OR CONFLICTS.
, VEHICLES: DESIGN correct answersROAD SHOULD NOT BE PERPENDICULAR TO SLOPE UNLESS SLOPE IS
GENTLE. SHOULD SLIGHTLY CROSS THE SLOPE TO MINIMIZE GRADE. MAX SLOPE FOR ROAD 15.0% 10%
OR LESS IS PREFERABLE.
PEDESTRIAN CIRCULATION correct answersCONVENIENT, DIRECT ACCESS TO POINTS ON SITE. SIDEWALKS
PROVIDE ACCESS TO POINTS ON SITE. COLLECTOR WALKS NEXT TO PARKING TO TRAVEL FROM CAR TO
SEPARATE WALKS. MIN 6 FEET WIDE WHEN ADJACENT TO PARKING. NO MORE THAN 1/4" SLOPE FOR
ADA.
SERVICE ACCESS correct answersKEEP SEPARATE FROM VEHICLE CIRC. GIVE SPACE FOR LARGE TRUCK
TURNAROUND/BACK UP. PROVIDE CLEARANCES IF ENCLOSED.
PARKING DESIGN correct answersPLAN FOR EFFICIENCY, CONVENIENCE TO BLDG, AND SEPARATE FROM
PEDESTRIANS. PARKING SIZE DETERMINED BY ZONING AND PROGRAM. STANDARD PARKING SPACE IS
9x19, COMPACT CARS 7-6x15. ZONING MAY DIFFER HERE.
PARKING ARRANGEMENT correct answersPLACED ALONG AISLES. SINGLE AND DOUBLE LOADED TYPES.
90 DEG PARKING IS MOST EFFICIENT IN TERMS OF LAND USE. ANGLED PARKING IS EASIER TO USE AND
FORCES ONE WAY CIRC. MOST EFFICIENT IS DOUBLE LOADED AISLE THAT USE THE DRIVE TO BACK UP.
400SF PER CAR USED TO ESTIMATE SIZE TO START.
PARKING: ACCESSIBLE correct answers# OF ADA STALLS SET BY ADA AND LOCAL CODES. BASED ON TOTAL
# OF PARKING SPACES. LOCATE CLOSE TO BLDG ENTRY. IDENTIFY W/ SYMBOL. MUST BE ADJACENT TO
PARKING ACCESS AISLE (PART OF ACCESSIBLE ROUTE). % MAY NEED TO BE VAN ACCESSIBLE (ADJACENT
AISLE MUST BE 5' WIDE OR 8' WIDE FOR VAN. MAX SLOPE OF 2.0%
DRAINAGE correct answersESTABLISH PARKING DRAINAGE AS PART OF SITE DESIGN. SLOPE BETWEEN
1.5% AND 5.0%. DRAIN WATER TO EDGES. CURB CUTS NECESSARY FOR PARKING CURBS. ABOUT 1 FOOT
OF ELEVATION CHANGE PER DOUBLE LOADED AISLE (62 FEET).
LANDSCAPING correct answersA SINGLE ROW OF TREES CAN REDUCE WIND 30-40% FOR 5 TIMES THE
TREE HEIGHT. TREES NEXT TO BLDG REDUCE WIND 20-60%. PARKING STRIPS OR ISLANDS MIN 7 FEET
WIDE.
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