Site planning and Design Flashcards
Vignette Question: What is Generally the best placement of the level area for the item to be constructed?
Choose a location on the site where the contours are not spaced to closely together (which indicates a steeper slope) and any site elements that are to remain undisturbed are fairly far away. Placing the level area perpendicular to the direction of the contours may also help with your drainage design, but remember to adhere to any specifications given in the program and always choose the direction that creates the most efficient layout.
Vignette question: What formula should you use to calculate the minimum and maximum spacing requirements using the slope percentages given for the site Grading vignette?
W=I/S I is the CONTOUR INTERVAL S is the SLOPE W is the spacing WIDTH
Vignette Question: What main issues should you consider when approaching a solution for a site grading vignette?
* Follow the minimum and maximum spacing requirements using the slope and percentages given. *Grade the site so water will drain properly around the site features. *Do not disturb the contours around any elements to remain (i.e. trees, rocks, etc.) *Keep the contour alterations within the building limit lines. *Do not overlap the contours *Indicate the finish floor elevation for the level area.
Vignette Question: Why is it important to note the contour interval on the site grading vignette site plan?
The contour interval will be necessary in order to calculate the minimum and maximum spacing requirements for the contour alterations you are required to draw.
Vignette Question: Is there a different formula/procedure for calculating the minimum slope vs. maximum slope?
No, use the same process. (W=I/S) however, change the S Value depending on which value you are calculating,
Vignette Question: What is the best way to decide your finished floor elevation for the site grading plan?
Find a fairly evenly graded portion of the site and select a contour line to be the level area. This line will be the base level for your finished floor. Use the minimum size requirements from the program and add that dimension to the contour elevation (i.e. using contour line 86’-0” with a required FF elev. of 6” min. above the level area would result in a FF elevation of 86’-6”)
Vignette Question: What are the best ways to keep your solution to the site grading vignette efficient?
Don’t go over the required minimum FF elev. Only alter contours that are necessary to create a level area and maintain the minimum and maximum slope requirements. Choose a location for the level area where the fewest possible contour lines will need to be altered.
Vignette Question: What is a swale and how is it useful in the site grading vignette?
Swales are used to drain water away from a level area. They can be created by altering the contour lines to point up in an arrow or ^ in an uphill direction. These will be necessary elements to draw carefully in order to maintain the min. and max. slope requirements.
Vignette Question: Why is the direction of the slope important to note on the site grading vignette?
Knowing which way the contours are sloping will be vital in showing an accurate solution with water flowing downhill. Look at the contour intervals listed along the side of the site plan, they will be shown from a high point down to a low point. Make sure your swales point to the high elevation i order to drain properly.
Vignette question: What is the number one thing to remember when solving the site design vignette?
Follow the program. Don’t add more than what is required and try your best to include everything that is asked for.
Vignette Question: Other than the program, what other design item should you consider for the site design vignette?
Efficiency. Minimizing paving on the site, loss of native trees ad preserving views are all ways to make sure your design will be as efficient (and hopefully accurate) as possible.
Vignette Question: What is the shortest segment of road you can draw using the road tool for the site design vignette?
20 ft. the roads are automatically drawn at 24’ wide from the centerline of the road. So if you are trying to line up where your road will connect to your parking, begin drawing the road 12’ away from the stalls and 2 will connect.
Vignette Question: How can sketch circles and lines help when laying out the site design vignette?
Sketch circles are helpful to maintain setbacks, such as what may exist at a lake or a pond. If the setback needs to be 30’, draw circles with a 30’ radius and place them along the rimester of the pond to remind you to stay out of that area. Sketch lines can be used to help lay out your parking lot and roads by offsetting lines at 24’ intervals for the road and 18’ intervals for the parking stalls.
Vignette Question: If your site Design vignette program requires a building to have noonday sun at the entry, what would be the best location for this building?
Face the entry of the building to the south. This will provide the sun requirement and give you a constraint as far as site placement for the building so you don’t have to second guess where it should go. Remember, be direct!
Vignette Question: Where can you find the scoring requirements for the site design vignette?
In the program. Everything you will be scoring on is stated in the program, no trick questions here. Follow it and finish it o time and you are likely to pass this portion of the exam.
Vignette question: Which trees should be used to block the wind in the sire design vignette?
Conifers. the low dense branches provide a wind barrier when the trees are placed adjacent to one another on the site. Make sure to place them perpendicular or at an angle to the wind in order to block it. placing them parallel will create a wind tunnel, which would be unpleasant.
Vignette Question: What are deciduous trees best used for during the site design vignette?
Shading. Deciduous trees have tall branches that generally have more volume than conifers and provide good shading from the sun where required. They also do not block views because their branches are high enough off the ground.
Vignette question: What parking requirements should you keep in mind for the site design vignette?
90 degree parking with drive through circulation is required. This will likely not change and remain as one of those NCARB code constraints, so don’t waste your time trying to figure our parallel parking or any dead end layouts.
Vignette question: What is the first thing you should do when beginning the sire design vignette?
Read the program and take notes. sped a few minutes in the beginning to get yourself organized so you dot have to flip back and forth between the site plan and the program screens. Use the chart shown in the vignette study guide as a starting point, but feel free to customize it to your own needs so that you will remember the requirements on exam day.
