There are many cars on a street during a rainy day.
People are stuck in traffick due to rain.
Sentence 1 only states that there's a lot of traffic on a rainy day, but does not describe traffic as being stuck.
exists p1 s1 x1 x2 x3.(during(p1,x3) & n_day(x3) & a_rainy(s1) & Theme(s1,x3) & on(p1,x2) & n_street(x2) & exists x4.((x1 = x4) & n_car(x4) & n_quantity(x4)))
exists e1 s1 x1 x2 x3 x4.(in(e1,x2) & to(s1,x4) & n_rain(x4) & Theme(s1,x3) & a_due(s1) & (x2 = x3) & n_traffick(x2) & Theme(e1,x1) & v_stick(e1) & n_people(x1))