How Many Pull Signals Do We Need in a Delivery Loop?

Oper­at­ing a pull sys­tem requires that we have the right num­ber of pull sig­nals in cir­cu­la­tion for each part num­ber at each deliv­ery loop. Learn the dif­fer­ence between deliv­ery routes and deliv­ery loops, the for­mu­la for cal­cu­lat­ing pull sig­nal quan­ti­ties in cou­pled and decou­pled deliv­ery routes, and the loca­tions along the route where pull sig­nals are needed.