예제 #1
0
 def travel_time(self, link, flow):
   return self.rho * quad_over_lin(1.0, self.mu - flow)
예제 #2
0
 def flow_x_travel_time(self, link, flow):
   return self.rho * (self.mu * quad_over_lin(1.0, self.mu - flow) - 1.0)
예제 #3
0
 def link_tt_heuristic(link):
   ff = link.l / link.fd.v
   q_max = (link.l / link.fd.q_max) * link.v_dens
   rho_hat = link.fd.rho_max - link.v_dens
   cong = link.l / link.fd.w * (link.fd.rho_max * quad_over_lin(1.0 , rho_hat) - 1)
   return cvx_max(hstack([ff, q_max, cong]))