Make sure you have properly parked your car. It should not be in along the Bull Run route. Pay attention to signs. It’s better to be one minute late after looking for safe parking than to park in the first spot you see, without making sure it’s properly located.
If you would rather come by public transport, there is a bus service every day from Segovia and Valladolid. It stops at the Bus Station on calle Cardenal Bartolomé de la Cueva 2 (very close to the city bull run route). SCHEDULE