;Let's draw the curbs
x=-10;
y=42;
moveto -20,-42;
x=10;
y=42;
moveto 20,-40;
x=-12.5;
y=42;
moveto -25,-40;
x=12.5;
y=42;
moveto 25,-40;

;Now we'll draw
;the bricks on the road
shift=0.25;
i=20;
while i>9 
{ 
  x=-i;
  y=-8*i+120;
  forward 2*i;
  i=i-1; 
  j=0;
  shift=-shift;
  while j<5
  { 
    x=-i+(j+shift+0.75)*i/20*8+shift;
    y=-8*i+120;
    moveto -(i+1)+(j+shift+0.75)*(i+1)/20*8+shift,-8*(i+1)+120;
    j=j+1;
    if j=4 AND shift>0 j=5;
  }
}
hide;