ARE 5.0 – PPD QUESTIONS AND ANSWERS RATED A+

ARE 5.0 – PPD QUESTIONS AND ANSWERS RATED A+ SITE DESIGN: BLDG LOCATION/IMPROVEMENTS ALL BLDGS DISRUPT DRAINAGE. ACCOMMADATE INCREASED RUNOFF. POSITIVE DRAINAGE AWAY FROM BLDGS. SITE DESIGN: DRAINAGE TYPES ABOVE 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 MINIMUM SITE PAVING TO BE 1.5% ABOVE GROUND. BELOW GROUND 0.3% SITE DESIGN: UNDERGROUND ITEMS STORM 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 BASED 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 CAN 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 MIN SLOPE IS 0.5% TO 2.0% DEPENDING ON PIPE SIZE. GREATER SLOPE FOR SMALLER PIPES. VEHICLES: CIRCULATION ROADS 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 ROAD 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 CONVENIENT, 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 KEEP SEPARATE FROM VEHICLE CIRC. GIVE SPACE FOR LARGE TRUCK TURNAROUND/BACK UP. PROVIDE CLEARANCES IF ENCLOSED. PARKING DESIGN PLAN 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 PLACED 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 # 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 ESTABLISH 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 A 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. ALTERNATE ENERGY SOURCES SOLAR: GREAT IMPACT ON ENERGY CONSERVATION, PROVIDE TO HEATING/COOLING, WATER HEATING, DAY LIGHTING. PASSIVE SOLAR SYSTEMS 1 DIRECT GAIN: COLLECT HEAT THROUGH GLASS AND STORE IN HIGH MASS MATERIALS (CONCRETE, MASONRY, ETC) RELEASE HEAT AT NIGHT, NEEDS WELL INSULATED GLASS. INDIRECT GAIN: THERMAL MASS IS NOT IN DIRECT SUNLIGHT. HEATED BY ROOM TEMP DURING DAY, LESS EFFICIENT (4 TIMES