Tienes que arrastrar el muñequito naranja que hay encima del zoom a la calle que quieras recorrer.
O prueba con esto: http://maps.google.es/maps?f=q&source=s_q&hl=es&geocode=&q=el+qui%C3%B1on&sll=40.396764,-3.713379&sspn=9.818189,26.323242&ie=UTF8&hq=&hnear=El+Qui%C3%B1on,+Sese%C3%B1a,+Toledo,+Castilla-La+Mancha&ll=40.132363,-3.67703&spn=0.008695,0.051413&t=h&z=15&layer=c&cbll=40.132679,-3.668393&panoid=aPL9QYNH3GAWDY4wSS4XuA&cbp=11,358.82,,0,5