After passing through Mexican customs, if travellers head directly forward and through the one-way turnstile gate, they will pass by the overpass of the vehicular traffic wanting to get into California and find the taxi stand.
NOTE: if you want to walk to Zona Rio and Avenida Revolución and you accidentally go this way, you will not encounter any problems - simply turn right at the taco stand and walk against the heavy flow of traffic walking to the San Ysidro building. You might feel like a salmon swimming upstream, but it's easily doable.
Category: taxi stand