I use google API in my project, now I also need to estimate the travel time between two places, including traffic. Therefore, I am passing the departure time: Thursday, January 7, 2016: 14:10 (1452175200) according to the Google API documentation.
Check out the difference between a live google map and google API and assume I'm doing something wrong.
Live google map response: (Thursday 07-January-2016 time: 14:10 PM )
https://www.google.com/maps/dir/Los+Angeles+International+Airport,+1+World+Way,+Los+Angeles,+CA+90045,+United+States/Beverly+Hills,+CA/@34.0077875,-118.4795875,12z/data=!3m1!4b1!4m17!4m16!1m5!1m1!1s0x80c2b0d213b24fb5:0x77a87b57698badf1!2m2!1d-118.40853!2d33.9415889!1m5!1m1!1s0x80c2bc04d6d147ab:0xd6c7c379fd081ed1!2m2!1d-118.4003563!2d34.0736204!2m3!6e0!7e2!8j1452175200
typically 28 min - 1 h 15 min
typically 35 min - 1 h 10 min
02:14 PM to 03:28 PM 1 h 14 min
****************************
Google direction API:
//Source address
$a = 'Los Angeles International Airport, 1 World Way, Los Angeles, CA 90045, United States';
//Destination address
$b = 'Beverly Wilshire, Beverly Hills (A Four Seasons Hotel), 9500 Wilshire Boulevard, Beverly Hills, CA 90212, United
States';
//Pass source and destination address in google map API for PESSIMISTIC
$url = 'https://maps.googleapis.com/maps/api/directions/xml?origin='. urlencode($a).'&destination='. urlencode($b).'&departure_time=1452175200&mode=driving&traffic_model=pessimistic&key=AIzaSyC7h7m5bRs-BZwk0XTXEQTB74dZujeLzZs';
//output: duration_in_traffic = 38 mins
//Pass source and destination address in google map API for OPTIMISTIC
$url = 'https://maps.googleapis.com/maps/api/directions/xml?origin='. urlencode($a).'&destination='. urlencode($b).'&departure_time=1452175200&mode=driving&traffic_model=optimistic&key=AIzaSyC7h7m5bRs-BZwk0XTXEQTB74dZujeLzZs';
//output: duration_in_traffic = 27 mins
//Pass source and destination address in google map API for BEST_GUESS
$url = 'https://maps.googleapis.com/maps/api/directions/xml?origin='. urlencode($a).'&destination='. urlencode($b).'&departure_time=1452175200&mode=driving&traffic_model=best_guess&key=AIzaSyC7h7m5bRs-BZwk0XTXEQTB74dZujeLzZs';
//output: duration_in_traffic = 30 mins
Both answers should be the same or approximate, but here we can see a huge difference. Can anyone suggest me?
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