diff --git a/docs/BuildConfiguration.md b/docs/BuildConfiguration.md
index 05da4cf4d0a..b2ab185ef97 100644
--- a/docs/BuildConfiguration.md
+++ b/docs/BuildConfiguration.md
@@ -945,7 +945,7 @@ the local filesystem.
 
 **Since version:** `2.2` ∙ **Type:** `enum` ∙ **Cardinality:** `Optional` ∙ **Default value:** `"default"`   
 **Path:** /osm/[0]   
-**Enum values:** `default` | `norway` | `uk` | `finland` | `germany` | `atlanta` | `houston` | `portland` | `constant-speed-finland`
+**Enum values:** `default` | `norway` | `uk` | `finland` | `germany` | `hamburg` | `atlanta` | `houston` | `portland` | `constant-speed-finland`
 
 The named set of mapping rules applied when parsing OSM tags. Overrides the value specified in `osmDefaults`.
 
@@ -953,7 +953,7 @@ The named set of mapping rules applied when parsing OSM tags. Overrides the valu
 
 **Since version:** `2.2` ∙ **Type:** `enum` ∙ **Cardinality:** `Optional` ∙ **Default value:** `"default"`   
 **Path:** /osmDefaults   
-**Enum values:** `default` | `norway` | `uk` | `finland` | `germany` | `atlanta` | `houston` | `portland` | `constant-speed-finland`
+**Enum values:** `default` | `norway` | `uk` | `finland` | `germany` | `hamburg` | `atlanta` | `houston` | `portland` | `constant-speed-finland`
 
 The named set of mapping rules applied when parsing OSM tags.
 
diff --git a/src/main/java/org/opentripplanner/openstreetmap/tagmapping/HamburgMapper.java b/src/main/java/org/opentripplanner/openstreetmap/tagmapping/HamburgMapper.java
new file mode 100644
index 00000000000..f893fbb5519
--- /dev/null
+++ b/src/main/java/org/opentripplanner/openstreetmap/tagmapping/HamburgMapper.java
@@ -0,0 +1,23 @@
+package org.opentripplanner.openstreetmap.tagmapping;
+
+import org.opentripplanner.openstreetmap.model.OSMWithTags;
+
+/**
+ * Modified mapper to allow through traffic for combination access=customers and customers=HVV.
+ *
+ * @see GermanyMapper
+ * @see OsmTagMapper
+ * @see DefaultMapper
+ *
+ * @author Maintained by HBT (geofox-team@hbt.de)
+ */
+public class HamburgMapper extends GermanyMapper {
+
+  @Override
+  public boolean isGeneralNoThroughTraffic(OSMWithTags way) {
+    String access = way.getTag("access");
+    boolean isNoThroughTraffic = doesTagValueDisallowThroughTraffic(access);
+
+    return isNoThroughTraffic && !way.isTag("customers", "HVV");
+  }
+}
diff --git a/src/main/java/org/opentripplanner/openstreetmap/tagmapping/OsmTagMapperSource.java b/src/main/java/org/opentripplanner/openstreetmap/tagmapping/OsmTagMapperSource.java
index 6ed4a701c30..d430ad05f7d 100644
--- a/src/main/java/org/opentripplanner/openstreetmap/tagmapping/OsmTagMapperSource.java
+++ b/src/main/java/org/opentripplanner/openstreetmap/tagmapping/OsmTagMapperSource.java
@@ -10,6 +10,7 @@ public enum OsmTagMapperSource {
   UK,
   FINLAND,
   GERMANY,
+  HAMBURG,
   ATLANTA,
   HOUSTON,
   PORTLAND,
@@ -22,6 +23,7 @@ public OsmTagMapper getInstance() {
       case UK -> new UKMapper();
       case FINLAND -> new FinlandMapper();
       case GERMANY -> new GermanyMapper();
+      case HAMBURG -> new HamburgMapper();
       case ATLANTA -> new AtlantaMapper();
       case HOUSTON -> new HoustonMapper();
       case PORTLAND -> new PortlandMapper();
diff --git a/src/test/java/org/opentripplanner/openstreetmap/tagmapping/HamburgMapperTest.java b/src/test/java/org/opentripplanner/openstreetmap/tagmapping/HamburgMapperTest.java
new file mode 100644
index 00000000000..1af3eefee18
--- /dev/null
+++ b/src/test/java/org/opentripplanner/openstreetmap/tagmapping/HamburgMapperTest.java
@@ -0,0 +1,51 @@
+package org.opentripplanner.openstreetmap.tagmapping;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
+import org.opentripplanner.openstreetmap.model.OSMWithTags;
+
+/**
+ * @author Maintained by HBT (geofox-team@hbt.de)
+ */
+public class HamburgMapperTest {
+
+  private HamburgMapper mapper;
+
+  @BeforeEach
+  void createMapper() {
+    mapper = new HamburgMapper();
+  }
+
+  @Test
+  public void shouldAllowThroughTraffic_WhenAccessCustomers_AndCustomersHVV() {
+    OSMWithTags way = new OSMWithTags();
+    way.addTag("access", "customers");
+    way.addTag("customers", "HVV");
+
+    boolean generalNoThroughTraffic = mapper.isGeneralNoThroughTraffic(way);
+
+    assertFalse(
+      generalNoThroughTraffic,
+      "access=customers and customers=hvv should allow through-traffic"
+    );
+  }
+
+  @ParameterizedTest
+  @ValueSource(strings = { "no", "destination", "private", "customers", "delivery" })
+  public void shouldDisallowThroughTraffic_WhenNoCustomersHVV(String access) {
+    OSMWithTags way = new OSMWithTags();
+    way.addTag("access", access);
+
+    boolean generalNoThroughTraffic = mapper.isGeneralNoThroughTraffic(way);
+
+    assertTrue(
+      generalNoThroughTraffic,
+      "access={no, destination, private, customers, delivery} should be blocked in general"
+    );
+  }
+}