Presenting non-recommended routes

A non-transitory computer-readable medium including one or more sequences of instructions that, when executed by one or more processors, cause the processors to perform operations comprising:

• sending, by a routing module of a user computing device, to a map service, a first request for routing information between a starting location and an ending location;
• receiving, by the routing module of the user computing device, a plurality of potential recommended routes between the starting location and the ending location from the map service at a first time, wherein the plurality of potential recommended routes are expected to be fastest under free-flow traffic conditions or historical traffic conditions;
• storing, by the routing module, the plurality of potential recommended routes in a storage device of the user computing device;
• at a second time after the first time, determining that recommended routes should be presented to a user;
• determining that the stored plurality of potential recommended routes exists in the storage device;
• based on the determination that the stored plurality of potential recommended routes exists, sending, by the routing module, to the map service, a second request for routing information between a same starting location and a same ending location as the starting location and the ending location indicated in the first request, the second request including the stored plurality of potential recommended routes that were previously received from the map service;
• receiving, at the routing module, evaluation results from the map service that indicate that one or more routes of the stored plurality of potential recommended routes sent to the map service by the routing module have a traversal time under current traffic conditions that is greater than a traversal time under the free-flow traffic conditions or the historical traffic conditions by a threshold amount;
• selecting, by the routing module, from the plurality of potential recommended routes, a plurality of recommended routes for a user of the user computing device based on user behavior data representing historically observed travel patterns that predict a likelihood of the user traveling along a route of the potential recommended routes;
• determining that a first route of the plurality of recommended routes is a non-recommended route, based on the evaluation results received from the map service;
• and
• presenting, by the user computing device, an alert that includes a recommendation to avoid the first route.

A system comprising:

• one or more processors;
• and
• a non-transitory computer-readable medium including one or more sequences of instructions that, when executed by the one or more processors, cause the processors to perform operations comprising:
• sending, by a routing module of a user computing device, to a map service, a first request for routing information between a starting location and an ending location;
• receiving, by the routing module of the user computing device, a plurality of potential recommended routes between the starting location and the ending location from the map service at a first time, wherein the plurality of potential recommended routes are expected to be fastest under free-flow traffic conditions or historical traffic conditions;
• storing, by the routing module, the plurality of potential recommended routes in a storage device of the user computing device;
• at a second time after the first time, determining that recommended routes should be presented to a user;
• determining that the stored plurality of potential recommended routes exists in the storage device;
• based on the determination that the stored plurality of potential recommended routes exists, sending, by the routing module, to the map service, a second request for routing information between a same starting location and a same ending location as the starting location and the ending location indicated in the first request, the second request including the stored plurality of potential recommended routes that were previously received from the map service;
• receiving, at the routing module, evaluation results from the map service that indicate that one or more routes of the stored plurality of potential recommended routes sent to the map service by the routing module have a traversal time under current traffic conditions that is greater than a traversal time under the free-flow traffic conditions or the historical traffic conditions by a threshold amount;
• selecting, by the routing module, from the plurality of potential recommended routes, a plurality of recommended routes for a user of the user computing device based on user behavior data representing historically observed travel patterns that predict a likelihood of the user traveling along a route of the potential recommended routes;
• determining that a first route of the plurality of recommended routes is a non-recommended route, based on the evaluation results received from the map service;
• and
• presenting, by the user computing device, an alert that includes a recommendation to avoid the first route.