Fuera de la Estación hay 2 líneas de buses esperando, la linea 11 y 12. ambas pasan por el acueducto. Se paga en efectivo y el valor es de, si no mal recuerdo, de 2 Euros. El bus se llena muy rápido, así que trata de salir rápido de la Estacion Los horarios y recorrido de la Linea 11 puedes verlo en su página web, segovia (punto) avanzagrupo (punto) com ya que no se puede incluir link en la respuesta

Yo no ví ninguno pero no puedo asegurar que no haya ninguna empresa. Preguntad en la Oficina de Turismo (situada al lado mismo del Acueducto) y seguro que os pueden orientar.

The taxi is about 10€ if I remember well and takes about 10 minutes. If you still have time walk to the Cathedral it’s one of the nicest in Spain about 15 min on foot from the aqueduct.

I traveled on my own, with a downloaded guide on my Kindle. But they do have a tourism bureau to help visitors.

There are no specific times, or length of time it takes to visit the aqueduct. You can see it quite well from ground level with a baby stroller; but to get to the top, there are quite a few stairs.

We did the trip today from Madrid by bus. Take the metro or a taxi to Moncloa. Go to the lowest level and find the Avanza bus ticket office. 4.50 euros one way (senior price?). Took 1.25 hours to Segovia. Comfortable clean bus.

Yes right next to the aqueduct, it's an old fashion bar, dark wood outside. The plus is if you go in a glass of wine and tapas €1.50 plus wifi. If you have the aqueduct behind you and your looking up streets where all the shops are, it's on your left 1st bar

Not very difficult, I will recomend you park in the road that ends up in the aqueduct but most of the places are pay and display. If you are going to stay for the whole day, just look for a private car park, there aren't many but town centre is small and you should have a few spaces.