Project Type - View Streets

An imagery version of the Validate Footprint project type where users can look for a specific feature (set by the project managers) in a set of Mapillary images.

View Streets projects have projectType = 7.

Project

The View Streets project type takes an AOI geometry as an input and returns corresponding Mapillary images to MapSwipe.

In addition to the common project fields documented in the data model, View Streets projects carry the following project-type-specific fields:

Parameter	Type	Description
customOptions	list (optional)	Custom answer options shown to the contributor (each with a value, title, description, icon, iconColor, and optional sub-options).
numberOfGroups	int	Total number of groups generated for the project.

Group

View Streets groups have no project-type-specific fields beyond the common group fields. Each group is identified by:

Parameter	Type	Description
groupId	string	ID of the group.

Task

The task payload is a Base64-encoded, GZIP-compressed string; clients decode and decompress it before rendering. Note that for View Streets the underlying taskId is an int rather than a string.

Parameter	Type	Description
taskId	int	ID of the task (integer for View Streets).
groupId	string	ID of the group the task belongs to.

Result

Results follow the common result shape, with results: dict[str, int] keyed by taskId. The integer values come from each custom option’s value defined on the project, since answers are given via custom options set by the project creator.

When the project creator does not supply customOptions, the backend falls back to the following defaults:

Value	Title	Description
0	No	The object you are looking for is NOT in the image.
1	Yes	The object you are looking for is in the image.
2	Not Sure	You’re not sure or there is bad imagery.