Civil 3D Roadway Corridor, Alignment, Profile, Surface, Cut-Fill Balance

today we're going to create an existing
surface road corridor corridor surface
analyze and balance cut & fill volumes
first thing that you always need is an
existing surface to build on we're going
to hide some of these elements in order
to select our 3d polylines go to tool
space under surfaces right button create
surface will call this existing ground
eg short go back over to eg will click
on definitions and we'll add contours
also called ezg there's our surface
unhide our isolated objects next thing
we're going to do is go home and go to
alignments climate creation tools will
call this already call road 1 that's
fine we'll click OK or dynamic selection
tools over here to the left we're going
to do a tangent to tangent with curves
it has a default e curve setting in it
you can go back that and change that
later if you need to we're just going to
bought some pio points in here where we
think it alignment may go for now we can
always go back and add and subtract or
take out or adjust the curves if
necessary now we're going to create an
existing profile surface and the
profiles we have our alignment road
service will click Add drawing profile
view we want to call this one existing
ground as well creating profile and
we're going to put it over the right
side to kind of get it out of the way
now we're going to create our proposed
profile
let's ask and sweat profiles do we want
to create it in we're going to click on
here this will come up and we'll call
this one pro4 proposed click OK again
another tool setting will come in from
go left we're going to dynamically do
similar what we deal with the horizontal
draw tangent with curves in your curve
settings and designed you can always go
back and change later but for right now
we'll just plot some Piazza's if we did
in the horizontal we think they might go
after we get that done we need to create
a simile so we go here and click on our
tool palettes get those ready and we'll
go to our similes create assembly we'll
call these row one and I want to put it
right here above my profile so I know
where it's at I'll go over here to my
tool palettes hit basic basic Lane it's
on the right side it's 12 foot under
properties out here you can change those
we're going to leave it for now we'll
hit the center of the sembly go back
over here to properties and hit the left
side come back to tool palettes when you
use a basic curve and gutter
click on that and this comes up to the
left side one a half-foot standard
gutter and we'll click again on the
right side
now we want to add a day light clicking
back on a tool palette so we want to use
a daylight multi interceptors standard
ground existing proposed multi intercept
we'll notice this is on the right side
but I want to change my slopes to three
to one instead of four so I'm going to
change them right now to the right side
and we'll click on left side
okay now we have created all the
elements for corridor yes sir for
corridor design got a corridor create
simple corridor we'll call this one Road
one it's going to ask me my line on
violence here you can check grab it here
or you can always hit enter and select
it but you select it either on the
drawing or you can hit enter and select
it from your full downs we use the
proposed because we have two proposed
vertical now we had only one assembly in
there Road once we'll select that your
target mapping comes up you want to map
it of course to existing ground surface
so that it ties back in to that surface
click OK and you should see this
generated on your and your plan view
there's your curb and gutter lines
centreline payments in here and here's
your tie-in points of your cut and feel
now we want to create a surface out of
our corridor and click over our twelve
spaces and we go down to our corridor
settings and rollout and we can write
button over corridor go to properties
select the surfaces tabs when you use
links and top and left-hand button them
add a surface here but when we use the
top all the way across because that's
what we only do and cut and feel first
time through with plus there go to
boundaries your next tab right button
over that and automatically daylight and
if you hit OK that should create your
contours and your 3d you can see that
your contours follow nicely along the
curb and gutter to your crown and back
and tie into your existing ground so
everything looks good now we go to
analyze we want to analyze our volumes
really quick just hit volumes and on the
left-hand button you want to click this
create a new volume entry and we'll
click the base surface in our existing
ground
and our road one surface because our
comparison to as we see we have about
you know four thousand cubic yards of
cut so if we always want to leave a
little bit of cutting nervous they won't
get this to it nearest few hundreds
cubic yards so we want to maybe bring
this up a little bit just to show you
demonstrate how this can work if we
bring that up just a little bit you'll
notice on the left here exclamation mark
means you change something so you need
to to correct that and you can also
notice the change as we rebuild this you
rebuild that and now you notice that
change just a little bit and also you
can go over here and hit the recompute
volumes and it should give you okay
within two hundred fifty seven feet so
cubic yards that's good enough for me
good enough for less than ten minute
demonstration thank you