diff --git a/src/OSM/features/simplifyOSM.h b/src/OSM/features/simplifyOSM.h
index 2d5e646..fd6197a 100644
--- a/src/OSM/features/simplifyOSM.h
+++ b/src/OSM/features/simplifyOSM.h
@@ -7,10 +7,26 @@
 #include <processor/OSMParser.h>
 #include <processor/OSMProcessorBase.h>
 #include <processor/bufferWays.h>
+#include <processor/filterWays.h>
 #include <processor/linkWays.h>
+#include <unordered_set>
 
 namespace TSMM::OSM
 {
+    static inline std::unordered_set<std::string> leftWayTags{"motorway", "trunk", "primary", "secondary", "tertiary", "residential"};
+
+    bool isWayFiltered(std::shared_ptr<OSMWay> &way)
+    {
+        std::string keyString = "highway";
+        const auto waytags = way->tags();
+        if (waytags.count(keyString))
+        {
+            if (leftWayTags.count(waytags.at(keyString)))
+                return false;
+            return true;
+        }
+        return true;
+    }
 
     class SimplifyOSM
     {
@@ -19,9 +35,8 @@ namespace TSMM::OSM
 
 
     public:
-        explicit SimplifyOSM(Conf &conf) : map_(nullptr), conf_(std::move(conf))
+        explicit SimplifyOSM(Conf &conf) : map_(std::make_shared<OSMMap>()), conf_(std::move(conf))
         {
-            map_ = std::make_shared<OSMMap>();
             try
             {
                 osmium::io::Reader reader(conf_.inPath_, osmium::osm_entity_bits::node | osmium::osm_entity_bits::way | osmium::osm_entity_bits::relation);
@@ -41,14 +56,14 @@ namespace TSMM::OSM
             // specific ways to process osmmap
             // for example: linkways --> buffer ways --> store the map
             std::vector<OSMProcessorBase *> processPipeLine;
+            OSMProcessorBase *wayFilter = new FilterWays(isWayFiltered);
             OSMProcessorBase *linkWays = new LinkWays();
             OSMProcessorBase *bufferWays = new BufferWays();
+            processPipeLine.push_back(wayFilter);
             processPipeLine.push_back(linkWays);
             processPipeLine.push_back(bufferWays);
 
-            for (auto &pipe: processPipeLine)
-                pipe->process(*map_);
-
+            std::for_each(processPipeLine.begin(), processPipeLine.end(), [&](auto &pipe) { pipe->process(*map_); });
             map_->save(conf_.outPath_);
         }
     };
diff --git a/src/OSM/map/OSMMap.h b/src/OSM/map/OSMMap.h
index e25bd47..deee601 100644
--- a/src/OSM/map/OSMMap.h
+++ b/src/OSM/map/OSMMap.h
@@ -2,12 +2,15 @@
 #define OSMMAP_H
 
 #include <iostream>
-#include <map/OSMType.h>
+#include <map/OSMNode.h>
+#include <map/OSMRelation.h>
+#include <map/OSMWay.h>
 #include <memory>
 #include <osmium/builder/osm_object_builder.hpp>
 #include <osmium/io/pbf_output.hpp>
 #include <osmium/io/xml_output.hpp>
 #include <osmium/memory/buffer.hpp>
+
 #include <unordered_map>
 
 namespace TSMM::OSM
@@ -16,64 +19,91 @@ namespace TSMM::OSM
     class OSMMap
     {
 
-        std::unordered_map<long long, std::shared_ptr<OSMType::Node>> nodes_;
-        std::unordered_map<long long, std::shared_ptr<OSMType::Way>> ways_;
-        std::unordered_map<long long, std::shared_ptr<OSMType::Relation>> relations_;
+        std::unordered_map<OSMNode::id_t, std::shared_ptr<OSMNode>> nodes_;
+        std::unordered_map<OSMWay::id_t, std::shared_ptr<OSMWay>> ways_;
+        std::unordered_map<OSMRelation::id_t, std::shared_ptr<OSMRelation>> relations_;
         osmium::memory::Buffer buffer_{10240, osmium::memory::Buffer::auto_grow::yes};
 
         void buildNodes(osmium::memory::Buffer &buffer)
         {
-            for (const auto &node: nodes_)
-            {
+            std::for_each(nodes_.begin(), nodes_.end(), [&](const auto &node) {
                 {
                     osmium::builder::NodeBuilder builder{buffer};
                     builder.set_user("tsmm");
                     osmium::Node &obj = builder.object();
 
-                    obj.set_id(node.second->id_);
-                    obj.set_uid(node.second->id_);
-                    obj.set_location(osmium::Location{node.second->lon_, node.second->lat_});
+                    obj.set_id(node.second->id());
+                    obj.set_uid(node.second->id());
+                    obj.set_location(osmium::Location{node.second->lon(), node.second->lat()});
                 }
                 buffer.commit();
-            }
+            });
         }
 
         void buildWays(osmium::memory::Buffer &buffer)
         {
-            for (const auto &way: ways_)
-            {
+            std::for_each(ways_.begin(), ways_.end(), [&](const auto &way) {
+                if (way.second->isActive())
                 {
-                    osmium::builder::WayBuilder builder{buffer};
-                    builder.set_user("tsmm");
-                    osmium::Way &obj = builder.object();
-
-                    obj.set_id(way.second->id_);
-                    obj.set_uid(way.second->id_);
+                    {
+                        osmium::builder::WayBuilder builder{buffer};
+                        builder.set_user("tsmm");
+                        osmium::Way &obj = builder.object();
+
+                        obj.set_id(way.second->id());
+                        obj.set_uid(way.second->id());
+
+                        {
+                            ///< add node ref
+                            osmium::builder::WayNodeListBuilder wayNodeListBuilder{buffer, &builder};
+                            std::for_each(way.second->nodeRefs().begin(), way.second->nodeRefs().end(), [&](const auto &nId) {
+                                osmium::Location node(nodes_[nId]->lon(), nodes_[nId]->lat());
+                                osmium::NodeRef nodeRef{nId, node};
+                                wayNodeListBuilder.add_node_ref(nodeRef);
+                            });
+                        }
+
+                        {
+                            ///< add way tags
+                            osmium::builder::TagListBuilder tl_builder{buffer, &builder};
+                            // add road level tag
+                            std::for_each(way.second->tags().begin(), way.second->tags().end(), [&](const auto &tags) {
+                                tl_builder.add_tag(tags.first, tags.second);
+                            });
+                        }
+                    }
+                    buffer.commit();
                 }
-                buffer.commit();
-            }
+            });
         }
 
+
         void buildRelations(osmium::memory::Buffer &buffer)
         {}
 
     public:
-        void addNode(long long id, double lat, double lon)
+        void addNode(OSMWay::id_t id, double lat, double lon)
         {
-            nodes_[id] = std::make_shared<OSMType::Node>(id, lat, lon);
+            nodes_[id] = std::make_shared<OSMNode>(id, lat, lon);
         }
 
-        void addWay(long long id)
+        void addWay(OSMWay::id_t id, std::vector<osmium::object_id_type> &nodeRef, std::unordered_map<std::string, std::string> &tags)
         {
-            ways_[id] = std::make_shared<OSMType::Way>(id);
+
+            ways_[id] = std::make_shared<OSMWay>(id, nodeRef, tags);
         }
 
-        void addRelation(long long id)
+        void addRelation(OSMRelation::id_t id)
         {
-            relations_[id] = std::make_shared<OSMType::Relation>(id);
+            relations_[id] = std::make_shared<OSMRelation>(id);
         }
 
 
+        std::unordered_map<OSMWay::id_t, std::shared_ptr<OSMWay>> ways() const
+        {
+            return ways_;
+        }
+
         void save(const std::string &path)
         {
             std::size_t bufferSize = 10240;
diff --git a/src/OSM/map/OSMNode.h b/src/OSM/map/OSMNode.h
new file mode 100644
index 0000000..076fd0d
--- /dev/null
+++ b/src/OSM/map/OSMNode.h
@@ -0,0 +1,36 @@
+#ifndef OSMNODE_H
+#define OSMNODE_H
+#include <memory>
+#include <unordered_map>
+namespace TSMM::OSM
+{
+
+    class OSMNode
+    {
+
+    public:
+        typedef std::int64_t id_t;
+
+
+        OSMNode(id_t id, double lat, double lon) : id_(id), lat_(lat), lon_(lon), isActive_(true) {}
+
+        void addTag(const std::string &key, const std::string &value)
+        {
+            tags_[key] = value;
+        }
+
+        id_t id() const { return id_; }
+        double lat() const { return lat_; }
+        double lon() const { return lon_; }
+
+
+    private:
+        id_t id_;
+        double lat_, lon_;
+        bool isActive_;
+        std::unordered_map<std::string, std::string> tags_;
+    };
+
+}// namespace TSMM::OSM
+
+#endif//OSMNODE_H
diff --git a/src/OSM/map/OSMRelation.h b/src/OSM/map/OSMRelation.h
new file mode 100644
index 0000000..07d2cdc
--- /dev/null
+++ b/src/OSM/map/OSMRelation.h
@@ -0,0 +1,37 @@
+#ifndef OSMRELATION_H
+#define OSMRELATION_H
+#include <memory>
+#include <random>
+#include <unordered_map>
+namespace TSMM::OSM
+{
+
+    class OSMRelation
+    {
+    public:
+        typedef std::int64_t id_t;
+
+
+        explicit OSMRelation(id_t id) : id_(id), isActive_(true) {}
+        void addMember(const std::string &type, long long refId)
+        {
+            members_.emplace_back(type, refId);
+        }
+
+        void addTag(const std::string &key, const std::string &value)
+        {
+            tags_[key] = value;
+        }
+
+        id_t id() const { return id_; }
+
+    private:
+        id_t id_;
+        bool isActive_;
+        std::vector<std::pair<std::string, long long>> members_;// Type ("node", "way", "relation") and ID
+        std::unordered_map<std::string, std::string> tags_;
+    };
+}// namespace TSMM::OSM
+
+
+#endif//OSMRELATION_H
diff --git a/src/OSM/map/OSMType.h b/src/OSM/map/OSMType.h
deleted file mode 100644
index 883de43..0000000
--- a/src/OSM/map/OSMType.h
+++ /dev/null
@@ -1,64 +0,0 @@
-#ifndef TYPE_H
-#define TYPE_H
-#include <unordered_map>
-#include <vector>
-
-
-namespace TSMM::OSMType
-{
-    // OSM Node: Represents a point with latitude, longitude, and tags
-    struct Node {
-        long long id_;
-        double lat_, lon_;
-        std::unordered_map<std::string, std::string> tags_;
-
-        Node(long long id, double lat, double lon) : id_(id), lat_(lat), lon_(lon) {}
-
-        void addTag(const std::string &key, const std::string &value)
-        {
-            tags_[key] = value;
-        }
-    };
-
-    // OSM Way: Represents a series of nodes (roads, rivers, buildings, etc.)
-    struct Way {
-        long long id_;
-        std::vector<long long> nodeRefs_;// Stores references to OSMNode IDs
-        std::unordered_map<std::string, std::string> tags_;
-
-        explicit Way(long long id) : id_(id) {}
-
-        void addNode(long long nodeId)
-        {
-            nodeRefs_.push_back(nodeId);
-        }
-
-        void addTag(const std::string &key, const std::string &value)
-        {
-            tags_[key] = value;
-        }
-    };
-
-    // OSM Relation: A group of nodes, ways, or other relations
-    struct Relation {
-        long long id_;
-        std::vector<std::pair<std::string, long long>> members_;// Type ("node", "way", "relation") and ID
-        std::unordered_map<std::string, std::string> tags_;
-
-        explicit Relation(long long id) : id_(id) {}
-
-        void addMember(const std::string &type, long long refId)
-        {
-            members_.emplace_back(type, refId);
-        }
-
-        void addTag(const std::string &key, const std::string &value)
-        {
-            tags_[key] = value;
-        }
-    };
-
-}// namespace TSMM::OSMType
-
-
-#endif//TYPE_H
diff --git a/src/OSM/map/OSMWay.h b/src/OSM/map/OSMWay.h
new file mode 100644
index 0000000..93d16c5
--- /dev/null
+++ b/src/OSM/map/OSMWay.h
@@ -0,0 +1,50 @@
+#ifndef OSMWAY_H
+#define OSMWAY_H
+#include <memory>
+#include <osmium/builder/osm_object_builder.hpp>
+#include <unordered_map>
+namespace TSMM::OSM
+{
+    class OSMWay
+    {
+
+    public:
+        typedef std::int64_t id_t;
+
+        OSMWay(id_t id, std::vector<osmium::object_id_type> &nodeRef, std::unordered_map<std::string, std::string> &tags)
+            : id_(id), isActive_(true), nodeRefs_(std::move(nodeRef)), tags_(std::move(tags)) {}
+
+        void addNode(long long nodeId)
+        {
+            nodeRefs_.push_back(nodeId);
+        }
+
+        void addTag(const std::string &key, const std::string &value)
+        {
+            tags_[key] = value;
+        }
+
+        id_t id() const { return id_; }
+
+        void deactivate() { isActive_ = false; }
+        bool isActive() const { return isActive_; }
+
+        const std::unordered_map<std::string, std::string> &tags() const
+        {
+            return tags_;
+        }
+
+        const std::vector<osmium::object_id_type> &nodeRefs() const
+        {
+            return nodeRefs_;
+        }
+
+    private:
+        id_t id_;
+        bool isActive_;
+        std::vector<osmium::object_id_type> nodeRefs_;// Stores references to OSMNode IDs
+        std::unordered_map<std::string, std::string> tags_;
+    };
+}// namespace TSMM::OSM
+
+#endif//OSMWAY_H
diff --git a/src/OSM/processor/OSMParser.h b/src/OSM/processor/OSMParser.h
index 9f61e1d..7cb4528 100644
--- a/src/OSM/processor/OSMParser.h
+++ b/src/OSM/processor/OSMParser.h
@@ -27,7 +27,17 @@ namespace TSMM::OSM
 
         void way(const osmium::Way &way)
         {
-            map_->addWay(way.id());
+            std::vector<osmium::object_id_type> nodeRef;
+            std::unordered_map<std::string, std::string> tags;
+            std::for_each(way.nodes().begin(), way.nodes().end(), [&](const auto &node_ref) {
+                nodeRef.push_back(node_ref.ref());// Store only node IDs
+            });
+
+            std::for_each(way.tags().begin(), way.tags().end(), [&](const auto &tag) {
+                tags.insert(std::make_pair(tag.key(), tag.value()));
+            });
+
+            map_->addWay(way.id(), nodeRef, tags);
         }
 
         void relation(const osmium::Relation &relation)
diff --git a/src/OSM/processor/OSMProcessorBase.h b/src/OSM/processor/OSMProcessorBase.h
index 076f59a..e319c85 100644
--- a/src/OSM/processor/OSMProcessorBase.h
+++ b/src/OSM/processor/OSMProcessorBase.h
@@ -11,6 +11,8 @@ namespace TSMM::OSM
     {
 
     public:
+        OSMProcessorBase() = default;
+        virtual ~OSMProcessorBase() = default;
         virtual void process(OSMMap &map) = 0;
     };
 }// namespace TSMM::OSM
diff --git a/src/OSM/processor/filterWays.h b/src/OSM/processor/filterWays.h
new file mode 100644
index 0000000..688c4d1
--- /dev/null
+++ b/src/OSM/processor/filterWays.h
@@ -0,0 +1,35 @@
+
+#ifndef FILTERWAYS_H
+#define FILTERWAYS_H
+
+#include <functional>
+#include <processor/OSMProcessorBase.h>
+
+namespace TSMM::OSM
+{
+
+    class FilterWays : public OSMProcessorBase
+    {
+
+    public:
+        using CallBack = std::function<bool(std::shared_ptr<OSMWay> &)>;
+        explicit FilterWays(CallBack call_back) : OSMProcessorBase(), callBack_(std::move(call_back))
+        {
+        }
+
+        void process(OSMMap &map) override
+        {
+            std::for_each(map.ways().begin(), map.ways().end(), [&](auto &pair) {
+                if (callBack_(pair.second))
+                    pair.second->deactivate();
+            });
+        }
+
+    private:
+        CallBack callBack_;
+    };
+
+}// namespace TSMM::OSM
+
+
+#endif//FILTERWAYS_H