Abstract: A method of providing at least one journey option computation to user and a journey information computer system is provided. The journey information computer system comprising: a client interface configured to receive a calendar email invitation comprising appointment details and user identity information; a decode module operable to identify and extract the user identity information and the appointment details from the email; a travel information processor configured to compute at least one journey option based on the appointment details together with data received from a least one travel information source; and a communication module configured to send the at least one computed journey option to a user device.

Abstract: A method of identifying congestion comprising the steps of monitoring traffic conditions using off call tracking data relating to cellular mobile communication devices carried in vehicles along an off call path and determining when an off call path crossing time of the call path exceeds a threshold. When the off call path crossing time exceeds the threshold, obtaining traffic data from probe vehicles on roads corresponding to the off call path, and analyzing the traffic data to determine the location of the congestion along the off call path.

Abstract: A method of identifying congestion comprising the steps of monitoring traffic conditions using off call tracking data relating to cellular mobile communication devices carried in vehicles along an off call path and determining when an off call path crossing time of the call path exceeds a threshold. When the off call path crossing time exceeds the threshold, obtaining traffic data from probe vehicles on roads corresponding to the off call path, and analysing the traffic data to determine the location of the congestion along the off call path.