Merge pull request #658 from lacuna-tech/feature/neil/tiered-rate-pol…

…icies Tiered Dwell Time with Rates
openmobilityfoundation · Sep 2, 2021 · b8362b8 · b8362b8
2 parents 31a8be0 + c0d407f
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diff --git a/policy/README.md b/policy/README.md
@@ -277,7 +277,7 @@ An individual `Rule` object is defined by the following fields:
 | `propulsion_types` | `propulsion_type[]`         | Optional   | Applicable vehicle [propulsion types][propulsion-types], default "all". |
 | `minimum`          | integer                     | Optional   | Minimum value, if applicable (default 0) |
 | `maximum`          | integer                     | Optional   | Maximum value, if applicable (default unlimited) |
-| `rate_amount`      | integer                     | Optional   | The amount of a rate applied when this rule applies, if applicable (default zero). A positive integer rate amount represents a fee, while a negative integer represents a subsidy. Rate amounts are given in the `currency` defined in the [Policy](#policy). |
+| `rate_amount`      | integer                     | Optional   | Amount of the rate (see [Rate Amounts](#rate-amounts)) |
 | `rate_recurrence`  | enum                        | Optional   | Recurrence of the rate (see [Rate Recurrences](#rate-recurrences)) |
 | `start_time`       | ISO 8601 time `hh:mm:ss`              | Optional   | Beginning time-of-day when the rule is in effect (default 00:00:00). |
 | `end_time`         | ISO 8601 time `hh:mm:ss`              | Optional   | Ending time-of-day when the rule is in effect (default 23:59:59). |
@@ -292,7 +292,7 @@ An individual `Rule` object is defined by the following fields:
 | Name    | Description                                                                                                   |
 | ------- | ------------------------------------------------------------------------------------------------------------- |
 | `count` | Fleet counts based on regions. Rule `minimum`/`maximum` refers to number of devices in [Rule Units](#rule-units).                                  |
-| `time`  | Individual limitations on time spent in one or more vehicle-states. Rule `minimum`/`maximum` refers to increments of time in [Rule Units](#rule-units). |
+| `time`  | Individual limitations or fees based upon time spent in one or more vehicle-states. Rule `minimum`/`maximum` refers to increments of time in [Rule Units](#rule-units). |
 | `speed` | Global or local speed limits. Rule `minimum`/`maximum` refers to speed in [Rule Units](#rule-units).                  |
 | `rate`  | **[Beta feature](/general-information.md#beta-features):** *Yes (as of 1.0.0)*. Fees or subsidies based on regions and time spent in one or more vehicle-states. Rule `rate_amount` refers to the rate charged according to the [Rate Recurrences](#rate_recurrences) and the [currency requirements](/general-information.md#costs-and-currencies) in [Rule Units](#rule-units). *Prior to implementation agencies should consult with providers to discuss how the `rate` rule will be used. Most agencies do this as a matter of course, but it is particularly important to communicate in advance how frequently and in what ways rates might change over time.*    |
 | `user`  | Information for users, e.g. about helmet laws. Generally can't be enforced via events and telemetry.          |
@@ -332,15 +332,22 @@ An individual `Rule` object is defined by the following fields:
 
 [Top][toc]
 
-### Rate Recurrences
+### Rates
+Rate-related properties can currently be specified on `rate` and `time` Rules. Note: A future MDS version will likely support rates for `count` and `speed` rules, but their behavior is currently undefined.
 
-Rate recurrences specify when a rate is applied – either once, or periodically according to a `time_unit` specified using [Rule Units](#rule-units). A `time_unit` refers to a unit of time as measured in local time for the juristiction – a day begins at midnight local time, an hour begins at the top of the hour, etc.
+#### Rate Amounts
+The amount of a rate applied when this rule applies, if applicable (default zero). A positive integer rate amount represents a fee, while a negative integer represents a subsidy. Rate amounts are given in the `currency` defined in the [Policy](#policy).
 
-| Name      | Description         |
-| --------- | ------------------- |
-| `once`                      |  Rate is applied once to vehicles entering a matching status from a non-matching status.   |
-| `each_time_unit`            |  During each `time_unit`, rate is applied once to vehicles entering or remaining in a matching status. Requires a `time_unit` to be specified using `rule_units`.  |  
-| `per_complete_time_unit`    | Rate is applied once per complete `time_unit` that vehicles remain in a matching status. Requires a `time_unit` to be specified using `rule_units`.  |
+#### Rate Recurrences
+
+Rate recurrences specify when a rate is applied – either once, or periodically according to a `time_unit` specified using [Rule Units](#rule-units). A `time_unit` refers to a unit of time as measured in local time for the jurisdiction – a day begins at midnight local time, an hour begins at the top of the hour, etc.
+
+| Name                        | Description                                                                                                                                                       |
+| --------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `once_on_match`             | Rate is applied once when a vehicle transitions **into** a matching status from a non-matching status.                                                            |
+| `once_on_unmatch`           | Rate is applied once a vehicle transitions **out of** a matching status to a non-matching status.                                                                 | 
+| `each_time_unit`            | During each `time_unit`, rate is applied once to vehicles entering or remaining in a matching status. Requires a `time_unit` to be specified using `rule_units`.  |  
+| `per_complete_time_unit`    | Rate is applied once per complete `time_unit` that vehicles remain in a matching status. Requires a `time_unit` to be specified using `rule_units`.               |
 
 [Top][toc]
 

diff --git a/policy/examples/README.md b/policy/examples/README.md
@@ -4,14 +4,18 @@ This file presents a series of example [Policy documents](../README.md#policy) f
 
 ## Table of Contents
 
-- [Prohibited Zone](#prohibited-zone)
-- [Provider Cap](#provider-cap)
-- [Idle Time](#idle-time)
-- [Speed Limits](#speed-limits)
-- [Per Trip Fees](#per-trip-fees)
-- [Vehicle Right of Way Fees](#vehicle-right-of-way-fees)
-- [Metered Parking Fees](#metered-parking-fees)
-- [Required Parking](#required-parking)
+- [Policy Examples](#policy-examples)
+  - [Table of Contents](#table-of-contents)
+  - [Prohibited Zone](#prohibited-zone)
+  - [Provider Cap](#provider-cap)
+  - [Idle Time](#idle-time)
+  - [Speed Limits](#speed-limits)
+  - [Per Trip Fees](#per-trip-fees)
+  - [Vehicle Right of Way Fees](#vehicle-right-of-way-fees)
+  - [Metered Parking Fees](#metered-parking-fees)
+  - [Required Parking](#required-parking)
+  - [Tiered Parking Fees Per Hour](#tiered-parking-fees-per-hour)
+  - [Tiered Parking Fees Total](#tiered-parking-fees-total)
 
 ## Prohibited Zone
 
@@ -445,5 +449,124 @@ File: [`required-parking.json`](required-parking.json)
 }
 ```
 
+## Tiered Parking Fees Per Hour
+This policy states parking fees as such:
+- Parking for the first hour costs $2
+- Parking for the second hour costs $4
+- Parking every hour onwards costs $10
+
+For example, say a vehicle is parked for 6.5 hours. It will be charged `$2 (0-1hr) + $4 (1-2hr) + $10 (2-3hr) + $10 (3-4hr) + $10 (4-5hr) + $10 (5-6hr) + $10 (6-6.5hr) = $56`
+File: [`tiered-parking-fees-per-hour.json`](tiered-parking-fees-per-hour.json)
+```
+{
+  "name": "Tiered Dwell Time Example",
+  "description": "First hour $2, second hour $4, every hour onwards $10",
+  "policy_id": "2800cd0a-7827-4110-9713-b9e5bf29e9a1",
+  "start_date": 1558389669540,
+  "publish_date": 1558389669540,
+  "end_date": null,
+  "prev_policies": null,
+  "provider_ids": [],
+  "currency": "USD",
+  "rules": [
+    {
+      "name": "> 2 hours",
+      "rule_id": "9cd1768c-ab9e-484c-93f8-72a7078aa7b9",
+      "rule_type": "time",
+      "rule_units": "hours",
+      "geographies": ["0c77c813-bece-4e8a-84fd-f99af777d198"],
+      "statuses": { "available": [], "non_operational": [] },
+      "vehicle_types": ["bicycle", "scooter"],
+      "maximum": 2,
+      "rate_amount": 1000,
+      "rate_recurrence": "each_time_unit"
+    },
+    {
+      "name": "1-2 Hours",
+      "rule_id": "edd6a195-bb30-4eb5-a2cc-44e5a18798a2",
+      "rule_type": "time",
+      "rule_units": "hours",
+      "geographies": ["0c77c813-bece-4e8a-84fd-f99af777d198"],
+      "statuses": { "available": [], "non_operational": [] },
+      "vehicle_types": ["bicycle", "scooter"],
+      "maximum": 1,
+      "rate_amount": 400,
+      "rate_recurrence": "each_time_unit"
+    },
+    {
+      "name": "0-1 Hour",
+      "rule_id": "6b6fe61b-dbe5-4367-8e35-84fb14d23c54",
+      "rule_type": "time",
+      "rule_units": "hours",
+      "geographies": ["0c77c813-bece-4e8a-84fd-f99af777d198"],
+      "statuses": { "available": [], "non_operational": [] },
+      "vehicle_types": ["bicycle", "scooter"],
+      "maximum": 0,
+      "rate_amount": 200,
+      "rate_recurrence": "each_time_unit"
+    }
+  ]
+}  
+```
+
+## Tiered Parking Fees Total
+This policy states parking fees as such:
+- If parked for less than an hour, $2 on exit
+- If parked for less than 2 hours, $4 on exit
+- If parked for any duration longer than 2 hours, $10 on exit
+
+For example, if a vehicle is parked for 6.5 hours, it will be charged $10 on exit.
+File: [`tiered-parking-fees-total.json`](tiered-parking-fees-total.json)
+```
+{
+  "name": "Tiered Dwell Time Example",
+  "description": "If parked for <1hr $2 upon exit, if parked for 1-2 hours $4 upon exit, if parked for longer than 2 hours $10 upon exit",
+  "policy_id": "2800cd0a-7827-4110-9713-b9e5bf29e9a1",
+  "start_date": 1558389669540,
+  "publish_date": 1558389669540,
+  "end_date": null,
+  "prev_policies": null,
+  "provider_ids": [],
+  "currency": "USD",
+  "rules": [
+    {
+      "name": "> 2 hours",
+      "rule_id": "9cd1768c-ab9e-484c-93f8-72a7078aa7b9",
+      "rule_type": "time",
+      "rule_units": "hours",
+      "geographies": ["0c77c813-bece-4e8a-84fd-f99af777d198"],
+      "statuses": { "available": [], "non_operational": [] },
+      "vehicle_types": ["bicycle", "scooter"],
+      "maximum": 2,
+      "rate_amount": 1000,
+      "rate_recurrence": "once_on_unmatch"
+    },
+    {
+      "name": "1-2 Hours",
+      "rule_id": "edd6a195-bb30-4eb5-a2cc-44e5a18798a2",
+      "rule_type": "time",
+      "rule_units": "hours",
+      "geographies": ["0c77c813-bece-4e8a-84fd-f99af777d198"],
+      "statuses": { "available": [], "non_operational": [] },
+      "vehicle_types": ["bicycle", "scooter"],
+      "maximum": 1,
+      "rate_amount": 400,
+      "rate_recurrence": "once_on_unmatch"
+    },
+    {
+      "name": "0-1 Hour",
+      "rule_id": "6b6fe61b-dbe5-4367-8e35-84fb14d23c54",
+      "rule_type": "time",
+      "rule_units": "hours",
+      "geographies": ["0c77c813-bece-4e8a-84fd-f99af777d198"],
+      "statuses": { "available": [], "non_operational": [] },
+      "vehicle_types": ["bicycle", "scooter"],
+      "maximum": 0,
+      "rate_amount": 200,
+      "rate_recurrence": "once_on_unmatch"
+    }
+  ]
+}
+```
 [Top](#table-of-contents)
 
diff --git a/policy/examples/tiered-parking-fees-per-hour.json b/policy/examples/tiered-parking-fees-per-hour.json
@@ -0,0 +1,57 @@
+{
+  "updated": 0,
+  "version": "1.2.0",
+  "data": {
+    "policy": [
+      {
+        "name": "Tiered Dwell Time Example",
+        "description": "First hour $2, second hour $4, every hour onwards $10",
+        "policy_id": "2800cd0a-7827-4110-9713-b9e5bf29e9a1",
+        "start_date": 1558389669540,
+        "publish_date": 1558389669540,
+        "end_date": null,
+        "prev_policies": null,
+        "provider_ids": [],
+        "currency": "USD",
+        "rules": [
+          {
+            "name": "> 2 hours",
+            "rule_id": "9cd1768c-ab9e-484c-93f8-72a7078aa7b9",
+            "rule_type": "time",
+            "rule_units": "hours",
+            "geographies": ["0c77c813-bece-4e8a-84fd-f99af777d198"],
+            "statuses": { "available": [], "non_operational": [] },
+            "vehicle_types": ["bicycle", "scooter"],
+            "maximum": 2,
+            "rate_amount": 1000,
+	    "rate_recurrence": "each_time_unit"
+          },
+          {
+            "name": "1-2 Hours",
+            "rule_id": "edd6a195-bb30-4eb5-a2cc-44e5a18798a2",
+            "rule_type": "time",
+            "rule_units": "hours",
+            "geographies": ["0c77c813-bece-4e8a-84fd-f99af777d198"],
+            "statuses": { "available": [], "non_operational": [] },
+            "vehicle_types": ["bicycle", "scooter"],
+            "maximum": 1,
+            "rate_amount": 400,
+	    "rate_recurrence": "each_time_unit"
+          },
+          {
+            "name": "0-1 Hour",
+            "rule_id": "6b6fe61b-dbe5-4367-8e35-84fb14d23c54",
+            "rule_type": "time",
+            "rule_units": "hours",
+            "geographies": ["0c77c813-bece-4e8a-84fd-f99af777d198"],
+            "statuses": { "available": [], "non_operational": [] },
+            "vehicle_types": ["bicycle", "scooter"],
+            "maximum": 0,
+            "rate_amount": 200,
+	    "rate_recurrence": "each_time_unit"
+          }
+        ]
+      }
+    ]
+  }
+}
diff --git a/policy/examples/tiered-parking-fees-total.json b/policy/examples/tiered-parking-fees-total.json
@@ -0,0 +1,57 @@
+{
+  "updated": 0,
+  "version": "1.2.0",
+  "data": {
+    "policy": [
+      {
+        "name": "Tiered Dwell Time Example",
+        "description": "If parked for <1hr $2 upon exit, if parked for 1-2 hours $4 upon exit, if parked for longer than 2 hours $10 upon exit",
+        "policy_id": "2800cd0a-7827-4110-9713-b9e5bf29e9a1",
+        "start_date": 1558389669540,
+        "publish_date": 1558389669540,
+        "end_date": null,
+        "prev_policies": null,
+        "provider_ids": [],
+        "currency": "USD",
+        "rules": [
+          {
+            "name": "> 2 hours",
+            "rule_id": "9cd1768c-ab9e-484c-93f8-72a7078aa7b9",
+            "rule_type": "time",
+            "rule_units": "hours",
+            "geographies": ["0c77c813-bece-4e8a-84fd-f99af777d198"],
+            "statuses": { "available": [], "non_operational": [] },
+            "vehicle_types": ["bicycle", "scooter"],
+            "maximum": 2,
+            "rate_amount": 1000,
+	    "rate_recurrence": "once_on_unmatch"
+          },
+          {
+            "name": "1-2 Hours",
+            "rule_id": "edd6a195-bb30-4eb5-a2cc-44e5a18798a2",
+            "rule_type": "time",
+            "rule_units": "hours",
+            "geographies": ["0c77c813-bece-4e8a-84fd-f99af777d198"],
+            "statuses": { "available": [], "non_operational": [] },
+            "vehicle_types": ["bicycle", "scooter"],
+            "maximum": 1,
+            "rate_amount": 400,
+	    "rate_recurrence": "once_on_unmatch"
+          },
+          {
+            "name": "0-1 Hour",
+            "rule_id": "6b6fe61b-dbe5-4367-8e35-84fb14d23c54",
+            "rule_type": "time",
+            "rule_units": "hours",
+            "geographies": ["0c77c813-bece-4e8a-84fd-f99af777d198"],
+            "statuses": { "available": [], "non_operational": [] },
+            "vehicle_types": ["bicycle", "scooter"],
+            "maximum": 0,
+            "rate_amount": 200,
+	    "rate_recurrence": "once_on_unmatch"
+          }
+        ]
+      }
+    ]
+  }
+}